AIR WISCONSIN AIRLINES LLC

Operated by AIR WISCONSIN AIRLINES LLC (per NTSB report)

The tug driver’s failure to ensure the taxiway was clear of aircraft prior to crossing, resulting in a collision with the left wing of the taxiing aircraft. Contributing to the accident was the limited visibility of the aircraft due to ambient lighting conditions and the absence of the aircraft’s nose-gear light, which reduced the tug driver’s ability to detect the aircraft’s presence in time to avoid the collision.

Operated by AIR WISCONSIN AIRLINES LLC (per NTSB report)

The airplane’s right turn, which developed during the landing rollout and persisted until the airplane came to rest, for reasons that could not be determined based on the available evidence. Contributing to the incident was the pilot’s reliance primarily on differential braking, rather than sufficient and sustained opposing rudder pedal, when attempting to arrest the turn.

Operated by AIR WISCONSIN AIRLINES LLC (per NTSB report)

The fuel truck driver backing up in the direction of the airplane without the use of marshallers.

Operated by Air Wisconsin (per NTSB report)

an inadvertant birdstrike on approach.

Operated by AIR WISCONSIN AIRLINES CORP (per NTSB report)

an inadvertent encounter with clear air turbulence during descent.

Operated by AIR WISCONSIN AIRLINES CORPORATION (per NTSB report)

the failure of the maintenance personnel to properly complete the installation, and the inspection personnel to conduct the proper functional test, of the left main landing gear uplock assembly.

Operated by Air Wisconsin Airlines (per NTSB report)

the captain’s attempt to salvage the landing from an instrument approach which exceeded stabilized approach criteria, resulting in a high sink rate, likely stall, and hard landing which exceeded the structural limitations of the airplane. Contributing to the accident was the first officer’s poor execution of the instrument approach, and the lack of effective intra-cockpit communication between the crew. Additional contributing factors to the accident are the lack of effective oversight by AWAC and the FAA to ensure adequate training and an adequate experience level of first officers for line operations.

Operated by Air Wisconsin Airlines Corporation (per NTSB report)

The opening of the service door when the airplane was pressurized. Contributing to the accident was the captain's failure to ensure that one of the airplane doors was open while a ground-cooling cart was connected, which resulted in pressurizing the airplane on the ground.

Operated by AIR WISCONSIN, INC. (per NTSB report)

uncommanded retraction of the nose and right main landing gears during landing roll for reasons undetermined.

Operated by AIR WISCONSIN (per NTSB report)

An undetermined failure in the hydraulic system, which resulted in the airplane's entire braking system becoming temporarily inoperative. A factor associated with the incident was the airport terminal building that was contacted by the airplane.

Operated by AIR WISCONSIN AIRLINES (per NTSB report)

an inflight encounter with unreported and unanticipated clear air turbulence during landing descent.

Operated by AIR WISCONSIN (per NTSB report)

failure of the flight crew to follow proper procedures, which resulted in an accumulation of ice and subsequent loss of engine power. Factors relating to the incident were: thunderstorms, turbulence, icing conditions, and the inaccurate method that was provided by the manufacturer for determining 'in cloud' air temperature and icing conditions.

Operated by AIR WISCONSIN, INC. (per NTSB report)

was a crack in the fuel system fuel flow distribution manifold which resulted from an inadequate design by the manufacturer.

Operated by AIR WISCONSIN (per NTSB report)

the passenger's loss of footing (miscellaneous).

Operated by AIR WISCONSIN, INC. — Commuter air carrier (135) Operator Does Business As: UNITED EXPRESS (per NTSB report)

THE TOTAL FAILURE OF THE INBOARD RIGHT MAIN LANDING GEAR WHEEL AXLE DURING THE INITIAL CLIMB.

Operated by AIR WISCONSIN AIRLINES (per NTSB report)

FAILURE OF COMPANY MAINTENANCE PERSONNEL TO MAINTAIN THE AIRPLANE IN ACCORDANCE WITH EXISTING SERVICE BULLETINS.

Operated by AIR WISCONSIN (per NTSB report)

COMPANY PROCEDURES AND DIRECTIVES NOT BEING FOLLOWED BY GROUND PERSONNEL. A FACTOR ASSOCIATED WITH THE ACCIDENT IS COMPLACENCY BY COMPANY/OPERATOR MANAGEMENT.

Operated by AIR WISCONSIN, INC. (per NTSB report)

THE CATASTROPHIC FAILURE OF THE NO.12 BLADE ON THE 4TH STAGE TURBINE WHEEL, AND FAILURE OF COMPANY MAINTENANCE PERSONNEL TO IDENTIFY THE PREEXISTING CRACK DURING MAINTENANCE INSPECTION.

Operated by AIR WISCONSIN (per NTSB report)

MATERIAL FAILURE OF THE LANDING GEAR RETRACTION AND EXTENSION ASSEMBLY. INADEQUATE MAINTENANCE AND TROUBLESHOOTING PROCEDURES IN COMPANY DIRECTIVES WERE FACTORS IN THIS INCIDENT.

Operated by AIR WISCONSIN (per NTSB report)

Operated by AIR WISCONSIN, INC. (per NTSB report)

Operated by AIR WISCONSIN,INC. (per NTSB report)

Operated by AIR WISCONSIN (per NTSB report)

Operated by AIR WISCONSIN (per NTSB report)

Operated by AIR WISCONSIN (per NTSB report)

Operated by AIR WISCONSIN* (per NTSB report)

Operated by AIR WISCONSIN (per NTSB report)

Operated by AIR WISCONSIN* (per NTSB report)

Operated by AIR WISCONSIN (per NTSB report)

Sanction: $12,000 · case closed 2012-11-27

Sanction: $18,000 · case closed 2010-02-16

Sanction: $17,000 · case closed 2009-08-14

Sanction: $120,000 · case closed 2010-05-28

Sanction: $7,500 · case closed 2005-06-10

Sanction: $5,000 · case closed 2005-03-08

Sanction: $5,000 · case closed 2005-03-02

Sanction: $4,000 · case closed 2004-03-18

Sanction: $3,000 · case closed 2000-08-23

Sanction: $10,500 · case closed 2001-01-31

Sanction: $24,000 · case closed 2001-05-18

Sanction: $25,500 · case closed 2000-02-09

Sanction: $3,500 · case closed 1999-10-22

Sanction: $13,000 · case closed 1999-10-22

Sanction: $40,000 · case closed 2000-01-28

Sanction: $18,000 · case closed 2003-07-22

Sanction: $22,000 · case closed 2003-02-03

Sanction: $500 · case closed 2002-04-26

Sanction: $250 · case closed 2002-04-25

Part: FLAP SYSTEM — FAILED · airframe 43,557 hrs · 43,516 cycles

FLAP FAIL CAUTION ON APPROACH C/W QRH. FLAPS FAILED AT 20 DEGREES. C/W FIM RESET PER AWA SUP 98-018I. MESSAGE REMAINS. AIRCRAFT REMOVED FROM SERVICE. REF 357150-1 FOR CORRECTIVE ACTION RESET FDU OPS TEST GOOD AND FLAPS OPS TEST GOOD.

Part: WINDOW — OVERTEMP (ZONE 200) · airframe 43,338 hrs · 42,239 cycles

2062 - R WINDOW HEAT CAUTION IN FLIGHT C/W QRH AND RETURNED TO ATW. AIRCRAFT REMOVED FROM SERVICE. REF W/O 348445, WC 1&2 FOR R&R OF SIDE WINDOW RH AND HEATER CONTROLLER. OPS CHECK AND LEAK CHECK GOOD. IAW AMM 56-12-01.

Part: UNKNOWN — NOISE · airframe 42,562 hrs · 41,563 cycles

ABORTED T/OFF AT 110 KTS, FLAPS 20, DUE TO A POPPING SOUND AND A/C PULLED TO THE RIGHT, DURING ROLL OUT WITH T/R'S DEPLOYED, NOTICED ITT ON RT ENGINE WAS RED. RETURNED TO NORMAL WHEN RESTOWING T/R'S. (BRAKE TEMP'S 8'S ACROSS THE BRD) ***AIRCRAFT REMOVED FROM SERVICE*****

Part: SEAT TRACK — GOUGED (ZONE 200) · corrosion level 2 · airframe 45,465 hrs · 44,270 cycles

PAX CABIN SEAT RAIL RT SIDE DEEP GOUGE AT FS559 APROX. REMOVED RT SEAT TRACK LOCATED, DRILLED, AND INSTALLED IAW SRM 51-41-00, 51-40-11 AND AMM 53-01-11.

Part: SEAT TRACK — CORRODED (ZONE 200) · corrosion level 2 · airframe 45,465 hrs · 44,270 cycles

PAX CABIN LT SEAT TRACK BS 559 - 559+32) DEEP GOUGE DAMAGE AREA/CORRODED REMOVED LT SEAT TRACK LOCATED, DRILLED AND INSTALLED IAW SRM 51-41-00, 51-40-11 AND AMM 53-01-11.

Part: OXYGEN PANEL — UNSECURE (ZONE 200) · airframe 41,829 hrs · 40,872 cycles

AIRCRAFT TOOK OFF FROM MKE AND SENT AN ACARS SAYING THEY HAVE A POSSIBLE PANEL OPEN AND THAT THEY ARE RETURNING TO MKE. THEY PROCEEDED TO GO BACK TO MKE AND BUILT UP AN AIR RETURN. ON THE WAY BACK THEY ALSO RECEIVED A STALL FAIL. AIRCRAFT REMOVED FROM SERVICE. SECURED CREW O2 PANEL. NO DISCREPANCIES NOTED AT THIS TIME REF AWAC SUPP 09-053F. NOTED BY MAINTENANCE.

Part: ADC — MALFUNCTIONED (NR 1) · airframe 43,181 hrs · 42,669 cycles

IN FLT A/P DISENGAGED, YAW 1 INOPERATIVE, ALT , VERT SPEED AND IAS INOP/FLAGGED, C/W QRH FLAGS CLEARED( SWITCHED TO #2 ADC), ALL INDICATIONS NORMAL. AIRCRAFT REMOVED FROM SERVICE. REF W/O 348209 W/C NUMBER 9 FOR THE REPLACEMENT OF ADC1 AND W/C #8 FOR REPLACEMENT OF AIR DATA REFERENCE PANEL. OPS CHECKS AND LEAK CHECKS GOOD. REF MTCM 000-34-220-120.

Part: WARNING MESSAGE — FALSE ACTIVATION (ZONE 500) · airframe 42,024 hrs · 41,164 cycles

DURING CLIMB THROUGH FL210 IN ICE CONDITIONS RECEIVED BLEED AIR DUCT WARNING FOR L FUSELAGE DUCT RAN QRH AND RETURNED TO IWA AIRCRAFT REMOVED FROM SERVICE, INSPECTED LT WING FUSELAGE A-ICE DUCTS AND LOOPS IN LT WHEEL WELL AND AFT EQUIPMENT BAY NO DEFECTS NOTED, C/W OPS/LEAK CHECK OF 14TH STAGE BLEED AIR CONTROL PANEL AND WARNING SYSTEM IAW AMM 36-11-00, 36-21-00 AND 36-21-01 NO DEFECTS NOTED. UNABLE TO DUPLICATE.

Part: WARNING LIGHT — ILLUMINATED (FLAP SYS) · airframe 48,466 hrs · 46,412 cycles

DURING CLIMB RECEIVED FLAPS FAIL CAUTION OCCURRED AT FL220. FLAPS WERE NOT SELECTED FLAPS FAILED AT 0. NO IMPROPER FLAP HANDLE MOVEMENT SUSPECTED. AIRCRAFT REMOVED FROM SERVICE.

Part: HEAT EXCHANGER — FAULTED (ZONE 400) · airframe 42,489 hrs · 41,520 cycles

DURING CLIMB-OUT AT CLIMB POWER NR 2 ENGINE OIL TEMP WAS 150 DEG AND SLOWLY CLIMBING. IT RETURNED TO THE GREEN WHEN POWER WAS RETARDED. RTN TO AZA. AIRCRAFT REMOVED FROM SERVICE. R & R RT ENGINE HEAT EXCHANGER IAW AMM 79-21-07 OPS CHECK GOOD LEAK CHECK GOOD REF 71-00-00 OIL CONSUMPTION CHECK OK.

Part: ACM — FAULTED (RIGHT) · airframe 48,876 hrs · 47,510 cycles

RT PACK TRIPPED OFF LINE 2 TIMES AT 80 PSI, PACK RESET EACH TIME, PACK HI TEMP CAUTION AT 30 DEG C PACK RESET PER QRH. NO PRESSURIZATION ISSUES. AIRCRAFT REMOVED FROM SERVICE, EMER DEPRESS SWITCH/ LIGHT PUSHED IN. DEACTIVATED BOTH A/C PACKS. DEACTIVATED OVBD SOV OPEN. AND RAM AIR SOV OPS CHECK GOOD. REF 370369-2 & 3 FOR MELS GRAY, PATRICK A&P 3518803 R&R RH ACM REF AMM 21-51-10 AND AWA SUP 15-337 LEAK AND OPS CHECK GOOD.

Part: PROXIMITY SENSOR — FALSE ACTIVATION (ZONE 800) · airframe 43,432 hrs · 43,440 cycles

RIGHT EMERGENCY DOOR CAUTION MESSAGE AFTER TAKE OFF INTERMITTENTLY. DELTA P 1.4. AIRCRAFT REMOVED FROM SERVICE. VERIFIED EMERGENCY DOOR PUSH PLATE IS FLUSH AND THE DOOR IS CLOSED LATCHED AND LOCKED. REF 357128/2 FOR MEL. CLEANED RIGHT EMERGENCY DOOR PROXIMITY SENSOR REFERENCE SRM 51-26-00 OPS CHECK GOOD, AMM 52-70-10 REMOVED PLACARD REMOVED FROM MEL.

Part: A/C PACK — OVERTEMP (RIGHT) · airframe 46,583 hrs · 44,087 cycles

IN LEVEL FLIGHT AT ABOUGHT 25000 RECEIVED RT PACK HIGH TEMP PACK SHOUT DOWN AFTER RECEIVING HIGH TEMP PASSENGER AND CREW 02 MASK DEPLOYED DUE TO PACK ISSUES. AIRCRAFT REMOVED FROM SERVICE. PERFORMED OPS CHECK OF RT ACM IAW AMM 21-51-00. OPS CHECK GOOD AND PERFORMED PRESSURIZATION CK REF 21-31-00. PRESSURE CHECKED GOOD.

Part: BALLAST — ODOR (ZONE 200) · airframe 41,891 hrs · 41,082 cycles

INTERMITTENT SMELL OF HOT WIRING BETWEEN ROWS 8-12 ON THE GRD. AIRCRAFT REMOVED FROM SERVICE. R & R LIGHT BALLAST AT ROW 10AB IAW AMM 33-21-04 AND UNUSUAL ODOR. OPS CHKD GOOD.

Part: DRIVE ASSY — FAILED (FLAP SYS) · airframe 41,678 hrs · 40,738 cycles

FLAPS FAILED CAUTION MSG ON APPROACH. FLAPS FAILED AT ZERO DEG. C/W FIM RESET, RESET FAILED. AIRCRAFT REMOVED FROM SERVICE. INSPECTED FLAP SKEW DETECTOR IAW FIM 27-50-00. FAULTS NOTED FOR FECU POWER 1 AND 2 AND LH OUTBD PANEL SKEW L4 AND L3. DEACTIVATED SKEW SYSTEM IAW AWA SUP 06-080A INSPECTED FLAPS NO SKEW NOTED. FLAPS OPS CHECK GOOD. MX WC#4 REACTIVATED SKEW DETECTION SYSTEM IAW SUPP 06-076A OPS CHECK OF THE SDS AND FLAPS GOOD. REF 338986/3 R&R BRAKE UNIT MOTOR.

Part: PROXIMITY SENSOR — MALFUNCTIONED (ZONE 700) · airframe 41,980 hrs · 40,943 cycles

RECEIVED GEAR DISAGREE WARNING MSG AFTER T/OFF CLIMBING THRU 5000'. MSG CLEARED AFTER A COUPLE SECONDS. GEAR WAS ALREADY UP/LOCKED WHEN MSG CAME ON. GEAR AND FLAP INDICATORS CAME ON BRIEFLY FOR APPROX 5 MINS AFTER GEAR DISAGREE MSG WARNING MSG MESSAGE. RECEIVED NO OTHER ASSOCIATED MSG'S. ACFT REMOVED FROM SERVICE. PERFORMED GVI OF GEAR, NO DISCREPANCIES FOUND. C/W M ACTION OF MEL 32-30-01, GEAR PINS INSTALLED FLAGS REMOVED. PERFORMED BITE CHECK OF PSEU IAW AMM 32-61-01. RECORDED FAULT CODE S21SHORT. REF 366179-4 AND 366180-1 FOR MEL'S. COLTON LOBITZ A/P 3849387 R&R PROX SENSOR PS1GA IAW AMM 32-61-05. OPS CHECK GOOD. PLACARD REMOVED. THIS CLEARS MEL

Part: BRACKET — BROKEN (THRUST REVERSER) · airframe 43,060 hrs · 42,589 cycles

AIRCRAFT REMOVED FROM SERVICE. FOD WAS FOUND OBSTRUCTING THE RH TORQUE BOX DRAIN HOLE, UPON FURTHER INSP WITH A BORE SCOPE THROUGH THE DRAIN HOLE IT WAS FOUND THAT A BRACKET HAD BROKEN OFF AIRCRAFT IS IN THE PROCESS OF BEING FERRIED FOR FURTHER INSP AND REPAIR. REMOVED AND REPLACED RIGHT HAND THRUST REVERSER TORQUE BOX, REFERENCE AMM 78-30-00, OPS CHECK GOOD. REFERENCE CONTINUATION CARD FOR WORK DONE.

Part: WINDSHIELD — FAILED (ZONE 200) · airframe 40,742 hrs · 40,818 cycles

AT FL330 RIGHT FO WINDSHIELD SHATTERED. C/W QRH. WINDSHIELD HEAT WAS ON. NO PRESSURIZATION ISSUES. EMERGENCY DECLARED. NO MESSAGES PRESENT. AIRCRAFT REMOVED FROM SERVICE. REF WO# 347539 FOR WORK COMPLETED R & R RIGHT WINDSHIELD.

Part: BALLAST — FAILED (ZONE 200) · airframe 43,014 hrs · 42,559 cycles

FA REPORTED HOT ELECTRICAL SMELL DURING AIRCRAFT WALK THROUGH POST FLIGHT. FIRE DEPARTMENT NOTED WARM SPOTS IN OVERHEAD BINS 3-6 BOTH SIDES AND SOME BROWN SPOTS ON WIRES. ***AIRCRAFT REMOVED FROM SERVICE ***** R&R LIGHT BALLAST OVER ROW 8AB IAW AMM 25-28-01 OPS CK GOOD AND PERF. UNUSUAL ODOR INSP IAW AWAC SUPP 09-037E NO ODORS PRESENT COLTON LOBITZ A&P 3849387

Part: IDG — FAULTED (NR 2) · airframe 43,967 hrs · 42,846 cycles

ON TAKEOFF ROLL RECEIVED NR 2 IDG CAUTION FOLLOWED BY GEN 2 OFF ABORTED TAKEOFF PRIOR TO 80KTS. C/W CM ACTION PLACARDED AND PLACED ON MEL. AIRCRAFT REMOVED FROM SERVICE. PLACED IDG NR 2 ON MEL, NO HOT BRAKES WERE NOTED DURING CALL. REF W/O 347513 FOR R&R OF IDG. REMOVED PLACARD AND FROM MEL.

Part: OIL SYSTEM — LOW PRESSURE (RT ENGINE) · airframe 43,969 hrs · 42,848 cycles

RECEIVED RIGHT ENGINE OIL PRESSURE WARNING AT 1000 FEET ON FINAL FULLY CONFIGURED OIL PRESSURE WAS APPROX. 30-35PSI AT 83% N2 PULLED RH ENGINE TO IDLE OIL PRESSURE REMAINED 30-35PSI, NO EXCEEDANCE IN MDC. AIRCRAFT REMOVED FROM SERVICE. REF W/O 347513 FOR R&R OF RT ENGINE.

Part: CONTROL LEVER — FAULTED (ZONE 200) · airframe 48,712 hrs · 47,399 cycles

FLAPS FAIL AT 20* ON APPROACH C/W QRH AND LANDED NORMALLY. MAX BRAKE TEMP 04 ALL WHEELS. PREFORMED FLAP RESET PROCEDURE IAW AWAC SUP 98-18I BOX 11. FLAPS RESET. PLACARDED AND PLACED ON MEL. AIRCRAFT REMOVED FROM SERVICE IAW W/O 347359. FLAP FAIL INTEROGATION AND TROUBLESHOOTING. R & R FLAP CONTROL LEVER IAW AMM 27-51-01. CHECKS GOOD. REMOVED PLACARD AND MEL.

Part: WINDOW — FAULTED (ZONE 200) · airframe 42,467 hrs · 41,710 cycles

LEFT WINDOW HEAT CAUTION MSG RAN QRH MSG CLEARED. AIRCRAFT REMOVED FROM SERVICE. ON LEFT WINDOW SWAPPED WIRES FROM S5 AND S6 BACK TO S1 AND S2. THIS CLEARS DIL REF 371644-2 IAW 30-41-06. REF 371644-2 SWAPPED S3, S4 TO S5, S6 ON LEFT HAND WINDOW REF AMM 30-41-06. PLACED ON DIL FOR INFORMATIONAL PURPOSES.

Part: PRIORITY VALVE — FAULTED (NLG) · airframe 48,696 hrs · 47,389 cycles

GEAR DISAGREE WARNING MSG AFTER T/O. NOSE GEAR INDICATED UNSAFE AND NOT UP AND LOCKED. C/W QRH. GEAR INDICATED DOWN AND LOCKED AFTER USING EMERGENCY EXTENSION HANDLE. ALL MSG'S EXTINGUISHED AFTER QRH. GEAR DISAGREE MESSAGE ORIGINALLY APPEARED 6-10 SECONDS AFTER GEAR UP HANDLE SELECTION. EMERGENCY WAS DECLARED PRIOR TO LANDING. AIR SPEED REMAINED 200 KNOTS OR LESS. LW 41,000 IBS. AIRCRAFT REMOVED FROM SERVICE, NLG PRIORTY VALVE AND UPLOCK REPLACED ON WO 346856, WC'S 9-10. OPS CHECKS WERE GOOD. SEE WO 346856 FOR DETAILS AND RII REQUIREMENTS. NLG UPLOCK, SAFRAN, PN; 16600-103, SN NGL/0750/03, NEW TIME: NEW CYCLES:, INSTAL TIME: , REPAIRED LAST

Part: DOOR — BINDING (ZONE 800) · airframe 41,491 hrs · 40,621 cycles

LEFT OVERWING EXIT WILL NOT OPEN FREELY. AIRCRAFT REMOVED FROM SERVICE. PERFORMED OPS CHECK OF OVERWING EMGERGENCY EXIT IAW AMM 52-21-00. PERFORMED OPS CHECK OF OVERWING EMGERGENCY EXIT IAW AMM 52-21-00. DOOR OPENS AND CLOSES FREELY, COMPLIED WITH CM ACTION OF MEL 25-70-20-16. TAPE APPLIED TO SIDEWALL PANEL REFERENCE 369579/3 FOR MEL

Part: FLOOR SUPPORT — CORRODED (ZONE 200) · corrosion level 2 · airframe 41,115 hrs · 43,288 cycles

CORROSION WAS FOUND ON THE FWD LOWER END OF THE SERVICE DOOR THRESHOLD/FLOOR SUPPORT BRACKET. UPON CLEANING OF THE CORROSION, FASTENER HOLES WERE ELONGATED AND REMOVED MATERIAL WAS BEYOND SRM LIMITS. BLENDED DISCREPANT AREAS OF CORROSION AND DID HFEC OF THE BLENDED AREAS. REAMED ELONGATED HOLES TO CLEAN AND ROUND CONDITION AND DID HFEC TO THE REAMED HOLES. FABRICATED REPLACEMENT CLIP PN: 601R38303-255. RESTORES SURFACE TREATMENT AND APPLIED CIC. WORK WAS COMPLETED PER STS STS EA 109-2026-040

Part: SELECTOR VALVE — FAULTED (ZONE 700) · airframe 48,671 hrs · 47,376 cycles

GEAR DISAGREE WARNING WITH TRIPLE CHIME AFTER TAKE OFF. C/W QRH, DECLARED EMERGENCY, AND RETURNED TO MSP. WARNING OCCURRED 28 SECONDS AFTER TAKE OFF, NO OTHER MSGS, NOSE GEAR RED, MANUAL RELEASE USED, HYD PUMPS AUTO, 160KTS, SMOOTH LANDING. REMOVED FLAGS FROM GEAR PINS AND INSTALLED GEAR PINS IAW AWAC SUP 11-054A REF 363804-4 FOR MEL. AIRCRAFT REMOVED FROM SERVICE. REF W/O 347128 W/C # 2,4,8 FOR REPLACEMENT OF HYD SYS #3 RESERVOIR AND NLG SELECTOR VALVE. SEE W/O FOR ALL RII'S FUNCTIONAL CHECK OF EXTENSION AND RETRACTION IS GOOD. REMOVED PLACARD AND REMOVED FROM MEL #3 HYDRAULIC RESERVOIR.

Part: ACTUATOR — MALFUNCTIONED (FLAP SYS) · airframe 46,775 hrs · 45,023 cycles

RECEIVED FLAPS FAIL WHEN SELECTING FLAPS FROM 8 TO 20. IT FAILED AT 8. C/W QRH. AIRSPEED 180 KNOTS WHEN FAILED. PERFORMED FLAP RESET PROCEDURE IAW AWAC SUPP 98-018I BOX 12. FLAPS RESET. REF 357078-1 FOR MEL REF 357077-4 PERFORMED FLAP FAIL RESET PROCEDURE. PLACARDED AND PLACED ON MEL. AIRCRAFT REMOVED FROM SERVICE. PERFORMED TROUBLESHOOTING PER FIM 27-50-00 FIG 103, REF WO 346671 FOR WORK PERFORMED. LT NR 4 FLAP ACTUATOR & LT BPSU. OPS CHECKED AND RIGGING CHECKED GOOD IAW AMM 27-54-00. REMOVED PLACARD AND REMOVED FROM MEL.

Part: FLOOR SUPPORT — CORRODED (ZONE 100) · corrosion level 2 · airframe 41,115 hrs · 43,288 cycles

DURING HEAVY MAINTENANCE, FOUND CORROSION ON FLOOR SUPPORT BEAM AT BL 27L, BETWEEN FS 574 AND FS 621. REPAIR INCLUDED BLENDING OF MINOR CORROSION, CUT AWAY OF CORROSION THAT WAS BEYOND LIMITS, HFEC OF REQUIRED AREAS, REPLACEMENT OF CUT OUT AREAS, AND REINFORCEMENT OF DAMAGED AREAS, APPLICATION OF SURFACE TREATMENT, SEALANT, AND PAINT AS REQUIRED. ALL WORK PER MHI REO 601R-53-61-8459 IR, AND APPLICABLE SRM AND NDTM MANUALS REFERENCED IN REO.

Part: SUPPORT — CORRODED (ZONE 100) · corrosion level 2 · airframe 41,115 hrs · 43,288 cycles

FLOOR SUPPORT ALONG AFT PRESSURE BULKHEAD FS 621 HAS CORROSION ON UPPER AND LOWER SURFACE AROUND NUTPLATES BETWEEN BL 9L AND 27L. BLENDED CORROSION, INSPECTED, REBUILT WITH EPOXY, INSTALLED DOUBLER, RESTORED SURFACE TREATMENT, APPLIED CIC.

Part: WIRE HARNESS — FALSE ACTIVATION (ZONE 700) · airframe 41,954 hrs · 41,077 cycles

EAR DISAGREE AFTER SELECTING GEAR UP. ALSO RECEIVED PROX SYSTEM FAULT STATUS FOR SEVERAL SECONDS THEN CLEARED. NOSE GEAR RETRACTED SLOWLY. AIRCRAFT REMOVED FROM SERVICE. DOWNLOADED PSEU CODES AND RECEIVED "INSP 523" AND A02 FAIL" FOR BOTH LEGS. CODES POINT TO A BAD NLG 060 EXTENDED PROX SENSOR. R&R WOW #2/NLG EXTENDED PROX SENSORS HARNESS. IAW SUP 12-029E. INSTALLATION OF COTTER PINS, LOCKWIRING THE CONNECTOR AND ADJUSTING CLEARANCES IS STILL REQUIRED. REF MX WC#4 FOR COMPLETION OF REMAINING O WORK.

Part: PRIORITY VALVE — FAULTED (ZONE 700) · airframe 41,954 hrs · 41,077 cycles

GEAR DISAGREE MSG DURING RETRACTION. AFTER 28 SECONDS, NOSE DOOR MESSAGE AFTER EMERGENCY EXTENSION HANDLE. HYD PUMPS IN AUTO DURING INITIAL MSGS, THEN SELECTED TO "ON" DURING QRH, NO ICE OR TURBULENCE DURING EVENT. JUST NLG BOX SHOWED RED. AIRCRAFT REMOVED FROM SERVICE. NOSE LANDING GEAR PRIORITY VALVE FOUND TO BE INTERMITTENLY WORKING. REMOVED AND REPLACED NOSE LANDING GEAR PRIORITY VALVE IAW 32-33-15-04 AND PERFORMED OPS CHECK IAW 32-30-00-00-730-801. OPS CHECK GOOD FOUND NO LEAKS, NOSE LANDING GEAR EXTENSION/RETRACTION RETURNED TO NORMAL OPERATING CONFIGURATION.

Part: WINDSHIELD — CRACKED (ZONE 200) · airframe 41,115 hrs · 43,287 cycles

REQUEST INSPECTION FOR F/O'S WINDSHIELD CRACKS. INSPECTED AND FOUND F/O WINDSHIELD TO BE OUT OF LIMITS IAW AWAC SUPP 14-201D REQUIRES REPLACEMENT. AIRCRAFT REMOVED FROM SERVICE.

Part: ADC — FAULTED (NR 2) · airframe 41,082 hrs · 43,258 cycles

AT 28000 FT DURING DECENT F/O AIRSPEED DECREASING AND EFIS COMP MON IAS CAUTION PRESENT AT 16000 FT F/O AIRSPEED RETURNED TO NORMAL. REMOVED AND REPLACED #2 ADC. OPS CHECK AND LEAK CHECK GOOD AT THIS TIME

Part: SERVO VALVE — FAULTED (NLG STEERING) · airframe 42,719 hrs · 41,797 cycles

STEERING INOP CAUTION MSG DURING CLIMB. RAN QRH, MSG PERSISTED. MSG CLEARED WITH NWS IN OFF POSITION. AIRCRAFT REMOVED FROM SERVICE. REF WO 343264 MWC #2 FOR TROUBLESHOOTING. R&R ELECTROHYDRAULIC SERVO VALVE, NLG IAW AMM 32-51-15. OPS CHECK GOOD AT THIS TIME.

Part: STEERING SYS — INOPERATIVE (ZONE 700) · airframe 42,719 hrs · 41,797 cycles

6109 - STEERING INOP CAUTION MSG DURING CLIMB. RAN QRH, MSG PERSISTED. MSG CLEARED WITH NWS IN OFF POSITION. ****AIRCRAFT REMOVED FROM SERVICE ****** IN WORK

Part: BALLAST — FAILED (ZONE 200) · airframe 42,703 hrs · 41,781 cycles

6047 - SMOKE COMING FROM OVER OVHD ON RH SIDE BETWEEN ROWS 5-6. SMELLS LIKE ELECTRICAL. PILOT DEBOARDED. DURING THE BOARDING PROCESS, THE FLIGHT ATTENDANT NOTIFIED THE CAPTAIN OF AN ODOR AND FUMES/SMOKE COMING FROM THE OVERHEAD BIN AT ROWS 5 AND 6. THE CAPTAIN IMMEDIATELY DEPLANED ALL PASSENGERS AND SHUT THE AIRCRAFT DOWN. BURNT DAMAGE TO THE OVERHEAD BIN WAS OBSERVED BY THE CAPTAIN WITH NO OTHER DAMAGE NOTED. THERE ARE NO KNOWN INJURIES TO CREW, PASSENGERS OR GROUND PERSONNEL AND THERE ARE NO ADVERSE PASSENGER REACTIONS. AIRCRAFT REMOVED FROM SERVICE. FOUND SIDE CEILING BALLAST FAILED IN OVERHEAD BIN COMPARTMENT ABOVE SEAT 5-6CD. REMOVED AND REPLACED BALLAST IAW AMM 33-21-01. OPS CHECK GOOD, NO OTHER DAMAGE NOTED.

Part: SENSOR — MALFUNCTIONED (NLG) · airframe 41,639 hrs · 40,915 cycles

NOSE GEAR WOULD NOT RETRACT, ASSOCIATED GEAR DISAGREE AND DOOR WARNING MSGS. HAPPENED ON CLIMB OUT WHEN SELECTING GEAR TO RETRACT AFTER 6 SECONDS. HYD PUMPS IN AUTO. UNDER 150 KNOTS. LANDING WEIGHTS 46,800 IBS. AIRCRAFT REMOVED FROM SERVICE, INSTALLED DOWN LOCK PINS IAW AMM 10-11-00 AND REMOVED THE FLAGS. REF 374446-3 FOR MEL. ACOSTA III, RAYMOND A&P 3745031 NLG OLEO CENTERED/EXTENDED PROX SENSOR (PS14GA) JAM NUTS FOUND LOOSE AND MISSING SAFETY WIRE, SENSOR IS LOOSE IN BRACKET. ADJUSTED AND RESECURRED NLG SENSOR PS14GA PER AMM 32-61-05, OPS CHECK GOOD. NLG RETRACT/EXTENSION CHECKS GOOD PER AMM 32-30-00. REMOVED PLACARD AND MEL.

Part: SHUTOFF VALVE — LEAKING (ZONE 400) · airframe 42,079 hrs · 41,459 cycles

AFT TO IN ICING COND WITH CLIMB PWR AND WING AND CWL AICE ON REC LT WING AICE CAUT MSG, C/W QRH, 14TH STAGE ISO SELECTED AN AFTER 30 SECONDS MSG REMAINS, ON GRND WHEN SELECTING WING AICE TO STANDBY ITT DOES NOT CHANGE. AIRCRAFT REMOVED FROM SERVICE. INSPECTED/ CLEANED CONNECTOR ON MOD/SHUTOFF VLV IAW AMM 30-12-04, NO DEFECTS NOTED AND PERF OPS TEST OF WING ANTI-ICE CONTROL/ IND SYS IAW AMM 30-12-00, NORMAL & STANDBY WING A-ICE CONTROL DID NOT PASS, REF 371035-4 . FOUND LH 14TH SOV LEKAING AIR R&R LH 14TH SOV IAW AMM 36-12-01 OPS CK AND LK CK GOOD AT THIS TIME OPS CK OF WING AICE SYS GOOD AT THIS TIME IAW AMM 30-12-00.

Part: SMOKE DETECTOR — FALSE ACTIVATION (ZONE 900) · airframe 48,243 hrs · 46,183 cycles

SMOKE TOILET CAUTION MESSAGE DISPLAYED WHILE PARKED AT GATE. C/W QRH MESSAGE REMAINED. C/B 2C5 2D14 2D15 2S2 2U2 PULLED. AIRCRAFT REMOVED FROM SERVICE. R&R LAV SMOKE DETECTOR IAW AMM 26-16-01. OPS CHECK GOOD AT THIS TIME. CLOSED C/B 2C5, 2D14, 2D15, 2S2, 2U2. PN:PU90-421R3 SN OFF:08999 SN ON:07994

Part: IDG — FAULTED (LEFT) · airframe 41,007 hrs · 43,187 cycles

ON CLIMB OUT REC'V GEN 1 OFF CAUTION MESSAGE. C/W QRH MESSAGE DISAPPEARED. REMAINED EXTINGUISHED REST OF FLIGHT. ***** AIRCRAFT REMOVED FROM SERVICE ***** R/R #1 IDG ASSEMBLY IAW AMM 24-11-01 REF 370816-4 FOR REQ LEAK AND OPS CHECK. SERVICED IDG IAW AMM SUP 17-086

Part: ANTI-ICE VALVE — FAULTED (RH ENGINE) · airframe 41,793 hrs · 40,806 cycles

INFIGHTING REC'D "R COWL A/I" CAUTION WITH SWITCH SELECTED OFF. FOUND R COWL PRV POPPED ON POST FLIGHT. AIRCRAFT REMOVED FROM SERVICE R&R RH COWL PRESSURE RELIEF VALVE REF 30-2204. OPS CHECK GOOD

Part: ANTI-ICE VALVE — FAULTED (LT ENGINE) · airframe 46,059 hrs · 44,623 cycles

L COWL ANTI ICE CAUTION LIGHT IN FLIGHT. DIVERTED TO PIA. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED RIGHT ENGINE COWL ANTI-ICE VALVE PER AWA AMM SUPP 10-094.OPS CHECK GOOD. PERFORMED OPERATIONAL TEST OF THE ENGINE COWL AND ANTI-ICE SYSTEM PER AMM 30-22-00. OPS CHECKED GOOD. PN OFF: 300013000-003 S/N OFF: 2091 PN ON: 5399-00-1 SN ON: 1484B SMG

Part: SKIN — DENTED (AFT FUSELAGE) · airframe 44,121 hrs · 43,853 cycles

RH AFT FUSELAGE HAS DENTS. AIRCRAFT REMOVED FROM SERVICE. PERFORMED REPAIR ON RH FUSELAGE SKIN BETWEEN FS 625.30 TO FS672.20 STR 20-23R IAW MHIRJ REO 601R-53-61-8276 REV -- DATED 2025-02-04.

Part: ESCAPE ROPE — BOUND (ZONE 200) · airframe 41,481 hrs · 40,729 cycles

6041 - EMER ESCAPE ROPE IMPROPERLY ZIP TIED. UNABLE FOR USE. EMER EGRESS ROPE WAS ZIPTIED TO IT'S SELF. THE ROPE WOULD NOT BE ABLE TO DEPLOY IN AN EMERG. AIRCRAFT REMOVED FROM SERVICE. CUT ZIP TIED AND RE-STOWED LH AND RH EMERGENCY STOW LINE IAW AWA SUPP 12-058A

Part: DRIVER UNIT — FAULTED (ZONE 200) · airframe 45,059 hrs · 43,240 cycles

AFTER ARRIVE A/C, BURNING SMELL ON EXT AC POWER. SWITCHED TO APU GEN. OVERHEAD PANEL LIGHTS FLICKERING AND BURNING SMELL CONTINUED NEAR 1 & 2 BREAKER PANELS. AIRCRAFT REMOVED FROM SERVICE. FOUND LAMP TEST #1 TO NOT BE WORKING AND PBA FLICKERING R&R LAMP DRIVER UNIT IAW AMM 31-41-07 OPS CHECKED GOOD PER AWA SUP 09-037E INSP NOT REQ DUE TO ODORS NOT SUSPECT TO BE EMANATING FROM THE AIR SUPPLY DUCTING.

Part: WARNING LIGHT — ILLUMINATED (ZONE 700) · airframe 44,327 hrs · 43,122 cycles

AFTER SELECTING THE GEAR UP WITH THE FLAPS AT 0 DEGREES. RECEIVED MOMENTARY GEAR DISAGREE WARNING. MESSAGE CLEARED ON ITS OWN AND QRH REVIEWED. GEAR EXTENDED NORMALLY FOR LANDING. AIRCRAFT REMOVED FROM SERVICE. OPEN.

Part: STIFFENER — MELTED (ZONE 100) · airframe 41,998 hrs · 41,166 cycles

REQUEST INSPECTION FOR SHORTED GROUND POWER RECEPTACLE. AC GROUND POWER AIRCRAFT REMOVED FROM SERVICE. INSPECTED AND FND A/C RECEPT AND SHIELD MELTED, RECEPT SUPPORT MEMBER & INTERCOSTAL HAS HEAT DAMAGE AND MELTED AREAS. FWD PRESS BULHEAD HAS APPROX 2"X 1.5" HOLE IN IT WITH SURROUNDING AREA METAL DISCOLORED, WARPED AND CRACKING. BLKHD VERT STIFFNER AND NLG BAY WEB HAVE SPARKING DAMAGE SIMILAR TO LIGHTNING STRIKE. RIVETS AT FS199 FOR RECEPT INTERCOSTAL HAVE BEGUN TO MELT, BUT ARE NOT NOT LOOSE. REF 370607-3 FOR OPS CK OF AC PWR GEN SYSTEMS REF 370607-1FOR ORIG DISCREPANCY

Part: PDU — FAILED (TE FLAPS) · airframe 43,261 hrs · 43,228 cycles

RECEIVED FLAP FAIL CAUTION MSG ON APPROACH TO LAND WHEN SELECTING FLAPS 30 FROM 20. FLAPS FAILED AT 20. FLAPS WER ON MEL. AIRCRAFT REMOVED FROM SERVICE. R & R FLAP PDU IAW AMM 27-52-01 FLAP PDU OPS TEST GOOD.

Part: WHEEL — UNKNOWN (NLG) · airframe 43,160 hrs · 43,120 cycles

UPON APPLYING TAKE-OFF POWER, AIRCRAFT YAWED HARD TO THE RIGHT, FULL LEFT RUDDER WOULD NOT COUNTERACT YAW. REJECTED TO PERFORMED. ON TAXI BACK TO HANGAR AC YAWED RIGHT WITH NO RUDDER / TILLER INPUT. BTMS SHOWED 2,1,1,1. AIRCRAFT REMOVED FROM SERVICE. REF LP 373747 BLOCKS 2 & 3 FOR NLG TIRE CHENGE. PERFORMED TAXI CHECK PER AMM 09-20. GOOD FOR CONTINUED SERVICE. R & R NR 1 & 2 NLG TIRE IAW AWA SUPP 12-016M COMPLIED WITH THE M061 INSTRUCTIONS, THE SPACER &WASHER WERE RETAINED FROM THE REMOVED WHEEL ASSEMBLY AND USED ON THE INSTALLED WHEEL. R&R #2 NLG TIRE IAW AWA SUPP 12-016M COMPLIED WITH THE M061INSTRUCTIONS,