N335PH
Registered owner: AMERICAN AIRLINES INC, TX (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Horizon Air | Operator | on 1995-08-03 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
69 reports on file, 1995-02-16 – 2026-03-02.
Part: SIGN — DISLODGED (ZONE 200) · airframe 24,975 hrs · 10,968 cycles
AIRCRAFT WAS NOT GROUNDED: EMERGENCY EXIT SIGN HANGING FROM CENTER ISLE ABOUT ROW 15. REINSTALLED EXIT SIGN IAW AMM 33-51-01.
Part: ADC — FAULTED (ZONE 100) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. ACFT AIR INTERRUPTED BACK & LANDED SAFELY AT DEN. CAPTAIN'S AOA SENSOR FAULTED, R & R LT AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) & LEFT HAND STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. REMOVE AND REPLACED FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. REMOVE & REPLACED NUMBER 1 (ADIRU)-AIR DATA INERTIAL REF UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK & TESTS ARE GOOD.
Part: DISPLAY — MALFUNCTIONED (ZONE 200) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DEN. (OPEN).
Part: ADIRU — FAULTY (ZONE 100) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DEN. CAPTAIN'S AOA SENSOR FAULTED, R & R LT AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) AND LT STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. R & R FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. R & R NR 1 ADIRU UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK AND TESTS ARE GOOD.
Part: AOA — FAULTED (ZONE 200) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DEN. CAPTAIN'S (AOA)-ANGLE OF ATTACK SENSOR FAULTED, REMOVED AND REPLACED LEFT HAND AOA SENSOR (AALA202602186718), PER AMM 34-21-05. REMOVE AND REPLACED LEFT HAND PITOT AIR DATA MODULE (AALA202603061844) AND LEFT HAND STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. REMOVE AND REPLACED FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. REMOVE AND REPLACED NUMBER 1 (ADIRU)-AIR DATA INERTIAL REF UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK AND TESTS ARE GOOD.
Part: AIR DATA MODULE — FAULTY (ZONE 100) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DEN. CAPTAIN'S (AOA)-ANGLE OF ATTACK SENSOR FAULTED, REMOVED AND REPLACED LEFT HAND AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) AND LT STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. R & R FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. R & R NR 1 ADIRU UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK AND TESTS ARE GOOD.*
Part: COMPUTER — FAULTY (FLT CONTROL) · airframe 24,889 hrs · 10,931 cycles
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DEN. CAPTAIN'S AOA FAULTED, R & R LT AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) & LT STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. R & R FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. R & R NR 1 ADIRU UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK AND TESTED GOOD.
Part: ELEC CONNECTOR — DISCONNECTED (ZONE 200) · airframe 24,656 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE, SEAT MOUNTED ESCAPE PATH LIGHT NOT WORKING AT SEAT ROW 14C. FOUND SEAT EMERGENCY LIGHT CONNECTORS DISCONNECTED. RECONNECTED SEAT MOUNTED ESCAPE PATH LIGHT IAW AMM 25-2200-00-400-80101, SUBTASK 420-00201.
Part: CLAMP — CORRODED (ZONE 300) · corrosion level 2 · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION TO RIGHT HAND ELEVATOR FRONT SPAR SUPPORT CLIP AT ELEVATOR STA 176.64 AND STABILIZER BL 83.05. REPLACED SUPPORT CLIP PER SRM 51-40-02.
Part: CLAMP — CORRODED (ZONE 300) · corrosion level 2 · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION TO RIGHT HAND ELEVATOR FRONT SPAR SUPPORT CLIP AT ELEVATOR STA 121.59 AND STABILIZER BL 83.05. REPLACED SUPPORT CLIP PER SRM 51-40-02
Part: CLAMP — CORRODED (ZONE 300) · corrosion level 2 · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION TO RIGHT HAND ELEVATOR FRONT SPAR SUPPORT CLIP AT ELEVATOR STA 66.54 AND STABILIZER BL 83.05. REPLACED SUPPORT CLIP PER SRM 51-40-02.
Earlier reports · 1995–2025 · 58 reports
2025
Part: CROSSBEAM — CRACKED (ZONE 200) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR STRUCTURE BREAK ASSEMBLY PANEL LOCATED AT BS 540 FROM RBL 0 RO RBL 25. REPLACED BREAK ASSEMBLY PANEL PER SRM 51-40-02.
Part: CROSSBEAM — CRACKED (ZONE 200) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR STRUCTURE BREAK ASSEMBLY PANEL LOCATED AT BS 540 FROM LBL 0 RO LBL 25. REPLACED BREAK ASSEMBLY PANEL PER SRM 51-40-02.
Part: TRACK — CHAFED (ZONE 800) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: AFT ENTRY DOOR FUSELAGE CUTOUT STRUCTURE FORWARD FRAME MOUNTED UPPER LATCH TRACK FITTING HAS A CHAFE. REMOVED AND REPLACED FORWARD FRAME MOUNTED UPPER LATCH TRACK FITTING AFT ENTRY DOOR. PER SRM 51-40-02-0G. PERFORMED SATISFACTORY AFT ENTRY DOOR ADJUSTMENT CHECK AND OPERATIONAL CHECK. PER AMM 52-13-00-820-801 AND AMM 52-13-00-700-805.
Part: GUIDE FITTING — GOUGED (ZONE 800) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: AFT ENTRY DOOR FUSELAGE CUTOUT STRUCTURE AFT FRAME MOUNTED CENTERING GUIDE FITTING HAS A GOUGE AT UPPER EDGE. REMOVED AND REPLACED CENTERING GUIDE FITTING AT AFT ENTRY DOOR FUSELAGE CUTOUT STRUCTURE AFT FRAME, PER B737-NG SRM 51-40-02.
Part: GUIDE FITTING — GOUGED (ZONE 800) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: FORWARD GALLLEY SERVICE DOOR FUSELAGE CUTOUT STRUCTURE AFT FRAME MOUNTED CENTERING GUIDE FITTING HAS A GOUGE AT UPPER EDGE. REMOVED AND REPLACED CENTERING GUIDE FITTING AT FORWARD GALLLEY SERVICE DOOR FUSELAGE CUTOUT STRUCTURE AFT FRAME. PER SRM 51-40-02.
Part: BOLT — LOOSE (ZONE 800) · airframe 24,657 hrs · 10,813 cycles
AIRCRAFT IN BASE MAINTENANCE: RIGHT-HAND FORWARD OVERWING ESCAPE HATCH CUTOUT AFT UPPER STOP BOLT LOOSE. MAINTENANCE TIGHTENED THE STOP BOLT PER AMM 52-22-00.
Part: PRESSURE SWITCH — INOPERATIVE (ZONE 500) · airframe 23,761 hrs · 10,356 cycles
AIRCRAFT WAS NOT GROUNDED: LEFT AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED DURING LEVEL FLIGHT. REMOVE AND REPLACED LEFT HAND AFT LOW PRESSURE SWITCH. PER AMM 28-42-11.
2024
Part: LIGHT — UNSECURE (ZONE 200) · airframe 20,784 hrs · 8,996 cycles
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTS EMERGENCY LIGHT ON SEAT 13A IS HANGINGOUT. SECURED LIGHT AS REQUIRED.
2023
Part: SMOKE DETECTOR — FALSE ACTIVATION (ZONE 200 - FUSE) · airframe 17,216 hrs · 7,371 cycles
AIRCRAFT WAS NOT GROUNDED: APPROXIMATELY 30 MIN AFTER TAKEOFF THE FORWARD LAVATORY SMOKE ALARM SOUNDED WITH SMOKE ILLUMINATED ON COCKPIT OVERHEAD. NO SIGN OR SMELL OF ACTUAL SMOKE. ALARM STOPPED AFTER 30 SECONDS. OPERATION CHECK LAVATORY SMOKE DETECTOR.
Part: BAFFLE — ELONGATED (ZONE 100 - FUSE) · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT IN BASE MAINTENANCE: BAFFLE BETWEEN STA 500B AND 500C AND 24R RIGHT HAND HAS ELONGATED HOLES. INSTALLED NEW BAFFLE PER AARD.
Part: TRANSITION PANEL — CORRODED (ZONE 100 - FUSE) · corrosion level 2 · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT BASE MAINTENANCE: CORROSION ON FORWARD CARGO COMPARTMENT LEFT HAND TRANSITION PANEL LOCATED FROM BS 500A TO BS 500B AT S25L. REPAIRED TRANSITION PANEL PER SRM 53-00-53-2R-5 AND EA 344444.
Part: TRANSITION PANEL — CORRODED (ZONE 100 - FUSE) · corrosion level 2 · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION FOUND ON LEFT TRANSITION PANEL LOCATED BETWEEN STA 500 AND 500A AND STR 25L. INSTALLED SPLICE REPAIR PER SRM AND EA.
Part: TRANSITION PANEL — CORRODED (ZONE 100 - FUSE) · corrosion level 2 · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION ON RIGHT TRANSITION PANEL STA 500D AND 500E AND STR 25. REMOVED AND REPLACED TRANSITIONAL PANEL PER SRM.
Part: SHIELD — CORRODED (ZONE 100 - FUSE) · corrosion level 2 · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT IN BASE MAINTENANCE: CORROSION FOUND ON RIGHT AFT CARGO SHIELD LOCATED BETWEEN 767 TO 787 AND STR 25R.
Part: ANGLE — CRACKED (ZONE 100 - FUSE) · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT WAS GROUNDED: ANGLE CRACKED AT STA 663 AND RIGHT BUTT LINE 16. INSTALLED A REPAIR ANGLE AND SPLICE PER SRM.
Part: ANGLE — CRACKED (ZONE 100 - FUSE) · airframe 16,699 hrs · 7,137 cycles
AIRCRAFT IN BASE MAINTENANCE: ANGLE CRACKED AT STA 663 AND LEFT BUTT LINE 16. REMOVED AND REPLACED ANGLE AND SPLICE REPAIR PER SRM.
2022
Part: FLOOR PANEL — DAMAGED (CABIN) · airframe 15,418 hrs · 6,533 cycles
AIRCRAFT WAS GROUNDED: CABIN FLOOR AT SEAT ROWS 17-18 SOFT AND MAKING "POPING" NOISE WHEN WALKED ON. MAINTENANCE REPAIRED FLOOR PANEL PER AARD 53-00-00-6.
Part: WINDSHIELD — DELAMINATED (COCKPIT) · airframe 15,370 hrs · 6,512 cycles
AIRCRAFT WAS GROUNDED: CAPTAINÿ½S WINDSHIELD SHOWS DELAMINATION AT HEATING ELEMENTS. REPLACED WINDSHIELD PER JOB CARD 08C21156001.
Part: WINDSHIELD — DELAMINATED (COCKPIT) · airframe 15,370 hrs · 6,512 cycles
AIRCRAFT WAS GROUNDED: FIRST OFFICERÿ½S WINDSHIELD SHOWS DELAMINATION AT HEATING ELEMENTS. REPLACED WINDSHIELD PER JOB CARD 08C21256001.
Part: RIVET — BROKEN (ZONE 800 - DOORS) · airframe 14,554 hrs · 6,124 cycles
AIRCRAFT WAS NOT GROUNDED: L1 DOOR GIRT BAR FORWARD RETAINER HAS BROKEN RIVET. REPLACED RIVET PER SRM 51-40-02.
Part: OVEN — SMOKE (ZONE 900 - LAV/G) · airframe 13,768 hrs · 5,777 cycles
AIRCRAFT WAS NOT GROUNDED: NUMBER 2 OVEN OVERHEATS, SMOKES AND HEATS UP. REMOVED AND REPLACED NUMBER 2 OVEN PER AMM 25-32-03.
Part: NONE — NONE · airframe 13,281 hrs · 5,545 cycles
AIRCRAFT WAS GROUNDED: GIRT BAR LOOSE AT 1R DOOR. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)
Part: NONE — INOPERATIVE (ZONE 800 - DOORS) · airframe 13,281 hrs · 5,545 cycles
AIRCRAFT WAS GROUNDED: GIRT BAR LOOSE AT 1R DOOR. **SUPPLEMENTAL REPORT FOR AALA202202243030: REPLACED BOTH GIRT BAR CLIPS REF B-737 IPC 25-66-00-14 AND SRM 51-40-02.** (CLOSED)
2021
Part: SLIDING WINDOW — OVERHEATED (ZONE 200 - FUSE) · airframe 12,478 hrs · 5,213 cycles
AIRCRAFT WAS GROUNDED: RIGHT SIDE R2 WINDOW OVERHEAT INDICATION. REPLACED WINDOW PER JOB CARD 08L21056002.
Part: FLOORBOARD — NONE (ZONE 200 - FUSE) · airframe 12,229 hrs · 5,090 cycles
AIRCRAFT WAS GROUNDED: CABIN FLOOR AT ROW 2 DEFLECTS AND POPS UNDER LOAD. **SUPPLEMENTAL REPORT: REPLACED FLOORBOARD WITH NEW IAW EA331263A AND AMM 53-21-00.** (CLOSED)
Part: NONE — NONE · airframe 12,229 hrs · 5,090 cycles
AIRCRAFT WAS GROUNDED: CABIN FLOOR AT ROW 2 DEFLECTS AND POPS UNDER LOAD. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)
Part: RETAINER — LOOSE (L1 GIRT BAR) · airframe 11,898 hrs · 4,955 cycles
AIRCRAFT WAS NOT GROUNDED: GIRT BAR CLIP DOOR 1L LOOSE. ADJUSTED RETAINER CLIP FOR GIRT BAR AT DOOR L1 PER AMM 25-66-01.
2020
Part: LIGHT — INOPERATIVE (CABIN) · airframe 9,458 hrs · 3,932 cycles
AIRCRAFT WAS NOT GROUNDED:DURING TEST OF EMERGENCY LIGHTING PER REACTIVATION CARD 08L00005050, SEAT 27D PATH LIGHT INOPERATIVE. REPLACED EMERGENCY LIGHT ASSEMBLY AT SEAT 27D PER AMM 33-51-11.
Part: BATTERY PACK — DISCONNECTED (EMERGENCY LIGHTS) · airframe 9,458 hrs · 3,932 cycles
AIRCRAFT WAS NOT GROUNDED: EMERGENCY PATH LIGHTING, SEAT AND CEILING DID NOT COME ON DURING TEST BETWEEN SEAT ROWS 7 AND 12. RECONNECTED THE BATTERY PACKS THAT WERE DISCONNECTED AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-06 AND AMM 33-51-00.
Part: SLIDE — UNKNOWN (R2 DOOR) · airframe 8,989 hrs · 3,736 cycles
AIRCRAFT NOT GROUNDED: R2 SLIDE REQUIRES REPLACEMENT. REMOVED AND INSTALLED NEW R2 SLIDE IAW AMM 25-66-01.
Part: FLOOR PANEL — DAMAGED (CABIN) · airframe 8,754 hrs · 3,630 cycles
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORT CABIN FLOOR IN AISLE AROUND EMERGENCY EXIT ROWS IS SOFT AND SPONGY, GIVES WAY A LOT WHEN WALKED ON. REPLACED FLOOR PANEL PER AMM 53-21-00.
2019
Part: SMOKE WARNING — FALSE ACTIVATION (LAVATORY) · airframe 6,566 hrs · 2,661 cycles
AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE DETECTOR ALARM SOUNDED, NO EVIDENCE OF ANY SMOKE, FIRE OR ANY BURNING MATERIALS FOUND. MAINTENANCE PERFORMED SELF TEST PER 26-11-00 AND PEFORMED SATISFACTORY OPERATIONAL CHECK.
Part: BRACKET — OUT OF ADJUST (GIRT BAR) · airframe 6,518 hrs · 2,641 cycles
AIRCRAFT NOT GROUNDED: PILOT REPORTS R1 DOOR GIRT BAR WILL NOT LOCK RIGHT HAND BRACKET. MAINTENANCE ADJUSTED R1 DOOR GIRT BAR BRACKET RT SIDE IAW AMM 52-41-00. OPS CHECK GOOD.
2018
Part: WINDOW — FAULTY (R4 DOOR) · airframe 4,106 hrs · 1,637 cycles
R4 DOOR WINDOW COVER TRIM FAULTY. MAINTENANCE REPLACED THE DOOR WINDOW PANEL IAW MM 56-31-00 AND PERFORMED A SATISFACTORY OPERATIONAL CHECK.
2017
Part: COVER — MISSING (EXIT SIGN) · airframe 2,116 hrs · 822 cycles
AIRCRAFT WAS NOT GROUNDED. EMERGENCY EXIT LIGHT COVER MISSING NEAR RIGHT AFT GALLEY DOOR. REPLACED AFT EXIT SIGN LIGHT ASSY IAW AMM 33-51-01.
Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 1,995 hrs · 777 cycles
AIRCRAFT WAS NOT GROUNDED. DURING A-CHECK THERE WAS ONE MISSING EMERGENCY LIGHT LENS ON THE CEILING ABOVE ROW 18. REPLACED MISSING EMERGENCY LIGHT LENS PER AMM 33-51-00.
Part: ACTUATOR — FAULTY (HORIZ STAB) · airframe 1,185 hrs · 462 cycles
AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. AUS-ORD FLIGHT DIVERTED TO DFW ACCOUNT STABILIZER TRIM INOPERATIVE. STABILIZER OUT OF TRIM AND SPEED TRIM FAIL LIGHTS ILLUMINATED. LANDING UNEVENTFUL. REMOVED AND REPLACED STABILIZER TRIM ACTUATOR (MOTOR) PER AMM 27-41-71. OPERATIONAL CHECK GOOD.
2001
Part: OIL FILTER — OBSTRUCTED (NR 1 ENGINE) · airframe 14,552 hrs · 17,305 cycles
LEFT ENGINE OIL PSI HIGH IN CRUISE. MAINTENANCE FOUND LT BYPASS FILTER CAS MESSAGE. REMOVED AND REPLACED NR 1 OIL FILTER AND SCAVENGE FILTERS.
Part: CONTROL UNIT — FAULTY (FIRE WARNING) · airframe 14,303 hrs · 16,999 cycles
NR 2 ENGINE FIRE WARNING LIGHT AND BELL CAME ON IN-FLIGHT. C/W EMERGENCY CHECKLIST - USED 1 BOTTLE AND LIGHT WENT OUT, SHUTDOWN ENGINE PER CHECKLIST. MAINTENANCE REMOVED AND REPLACED FIRE WARNING CONTROL UNIT.
1999
Part: CARBON SEAL — FAILED (NR 2 ENGINE)
FLT 7081 - DEN-GUC - CREW REPORTED FLUCTUATING OIL PRESSURE ON NR 2 ENGINE, SHUTDOWN ENGINE AT 40 PSI, RETURNED DEN. REMOVED AND REPLACED ACCESSORY GEARBOX BREATHER CARBON. (M)
Part: SWITCH — FAILED (LT OIL PRESSURE)
FLT 9500 - COS-DIV - EN ROUTE NOTICED LEFT OIL PRESSURE IN AMBER RANGE, SYSTEM PAGE INDICATED 66 PSI. FOLLOWED CHECKLIST AND FEATHERED PROP, PRESSURE REMAINED AT 66 PSI AND PROP OIL PRESSURE CAS MESSAGE ILLUMINATED, FOLLOWED CHECKLIST AND SECURED ENGINE. REMOVED AND REPLACED OIL PRESSURE SWITCH, OPS AND LEAK CHECK GOOD IAW JIC. (M)
1998
Part: PSEU — FAILED (MLG)
DFW - FLT 177 - ON APPROACH INTO BRANSON, THE LANDING GEAR WAS EXTENDED AND RECEIVED A PROXY SYSTEM FAIL MESSAGE ON THE CAS PAGE, THE MESSAGE WOULD NOT CLEAR SO EXECUTED A MISSED APPROACH AND RETURNED TO DFW AIRPORT WHERE MAINTENANCE PERSONNEL REPLACED THE PSEU BOX AND CLEARED THE PROBLEM. (M)
Part: PSEU — FAILED (COCKPIT)
DFW/TYS - FLT 376 - WHILE IN CLIMB-OUT FROM DFW EN ROUTE TO TYS, A CAUTION SOUNDED AND THE CAS SHOWED 'PROXI SYS' AMBER MESSAGE AND A 'PROXI HYD SINGLE' BLUE MESSAGE. ALSO, THE HYDRAULIC PAGE SHOWED A 'PROXI SYS FAIL' AND 'PROXI WOW FAIL' MESSAGE. CREW ATTEMPTED TO CLEAR MESSAGES BY CYCLING PROXI SYSTEM CIRCUIT BREAKERS, BUT WERE UNSUCCESSFUL. CREW NOTIFIED MAINTENANCE AND FLIGHT CONTROL. MAINT ADVISED CREW TO RETURN TO DFW. ACFT LANDED WITHOUT INCIDENT. MAINT INSPECTED ACFT AND DETERMINED PSEU HAD FAILED. MAINT REPLACED PSEU AND PERFORMED OPS CHECKS IAW DORNIER MM 32-61-12. ALL CHECKS SATISFACTORY. ACFT RETURNED TO REVENUE SERVICE.
Part: GCU — TRIPPED (LT ENGINE)
FLT 445 - DFW-CUU - APPROX 45 MINUTES INTO THE FLT, FLT WAS CLEARED TO CLIMB TO FL310. WHILE PASSING THROUGH FL280, CREW ENCOUNTERED A RT ALT FAILURE. FO ATTEMPTED TO RESET ALT BY PRESSING THE RT ALT BUTTON TO 'OFF' AND AGAIN TO 'ON'. ALT FAIL LIGHT REMAINED ON. CREW CONSULTED QRH FOR FOLLOW PROCEDURES AND PRESSED THE AC TIE BUTTON TO 'ON' TO ALLOW THE LT ALT TO PICK UP THE LOAD. CREW ALSO TURNED OFF WINDSHIELD HEATS. AS THE FLT LEVELED OFF AT FL310, CREW ENCOUNTERED LT ALT FAILURE. FO PRESSED THE AC TIE BUTTON TO 'OFF' AND ATTEMPTED TO RESET BOTH THE LT AND RT ALT WITH NEITHER COMING BACK ON LINE. CREW CONTACTED FLT CONTROL AND MX CONTROL AND RETURNED TO DFW. CENTER WAS BRIEFED OF THE SITUATION AND TH
Part: GCU — TRIPPED (RT ENGINE)
FLT 445 - DFW-CUU - APPROX 45 MINUTES INTO THE FLT, FLT WAS CLEARED TO CLIMB TO FL310. WHILE PASSING THROUGH FL280, CREW ENCOUNTERED A RT ALT FAILURE. FO ATTEMPTED TO RESET ALT BY PRESSING THE RT ALT BUTTON TO 'OFF' AND AGAIN TO 'ON'. ALT FAIL LIGHT REMAINED ON. CREW CONSULTED QRH FOR FOLLOW PROCEDURES AND PRESSED THE AC TIE BUTTON TO 'ON' TO ALLOW THE LT ALT TO PICK UP THE LOAD. CREW ALSO TURNED OFF WINDSHIELD HEATS. AS THE FLT LEVELED OFF AT FL310, CREW ENCOUNTERED LT ALT FAILURE. FO PRESSED THE AC TIE BUTTON TO 'OFF' AND ATTEMPTED TO RESET BOTH THE LT AND RT ALT WITH NEITHER COMING BACK ON LINE. CREW CONTACTED FLT CONTROL AND MX CONTROL AND RETURNED TO DFW. CENTER WAS BRIEFED OF THE SITUATION AND TH
1997
Part: CONTROL CABLE — FROZEN (LT ENG LEVER)
ASE - FLT 429 - WHILE IN CRUISE WITH OAT = -46 DEG C, LOST RESPONSE FROM LT POWER LEVER. MAINT ADVISED TO DESCEND WHEN ACFT REACHED FL 280 (OAT= -35 DEG C). POWER LEVER WOULD MOVE 1 INCH WITH NO CHANGE IN ITT OR TORQ INDICATION. POWER LEVER WOULD THEN SPRING BACK TO PREVIOUS POSITION. AFTER ATTEMPTS TO FREE, LEVER BECAME UNSTUCK AND RESPONSIVE TO POWER ADJUST. SEVERAL RESPONSE CHKS MADE. FAIRCHILD/DORNIER ADVISED C/W ASB 76-015 COUPLED WITH ADVISE TO CREWS TO MOVE POWER LEVERS EVERY 20 MINUTES TO PREVENT FREEZING. MAINT INSP POWER LEVER CABLES AND LUBED CABLES IAW ALERT SB 328-76-015. AS 328-76-015 C/W ON 12-11-97, AT TAT 7,203.7 HRS, 58.1 HRS PRIOR TO INCIDENT. ACFT RETURNED TO SERVICE. TC: 9,673.
Part: CONTROL CABLE — FROZEN (LT POWER LEVER)
DFW/ASE - FLT 429 - WHILE IN CRUISE AT FL 310 WITH OAT - -46 C, NOTED NO RESPONSE FROM LT PWR LEVER. WHEN ACFT REACHED FL 280 (OAT - -35 C). AFTER NUMEROUS ATTEMPTS TO FREE LEVER, LEVER BECAME UNSTUCK. ACFT CONTINUED TO ASE. MX GROUNDED ACFT AND INITIATED SPR 8210 TO FAIRCHILD/DORNIER REQUIRING MORE PROCEDURES. MFG ADVISED C/W ASB 76-15 COUPLED WITH ADVISE TO CREWS TO MOVE PWR LEVERS EVERY 20 MINS TO PREVENT FREEZING. MX PERFORMED INSP OF PWR LEVER CABLES, LUBED CABLES IAW ALERT SB 328-76-015. ASB 328-76-015 C/W ON 12-11-97 AT TAT 7203.7; 58.1 HRS PRIOR TO INCIDENT. ALL 328 DISPATCH RELEASES MODIFIED EFFECTIVE IMMED TO HAVE CREWS MOVE POWER LEVERS EVERY 15 MINS. ACFT RTND TO SVC. PART TC: 9,673.(X)
Part: ELECT ENG CONTL — DEFECTIVE (NR 2 ENGINE)
T/O ROLL, PROP SPEED SHOWED 78 PERCENT ON NR 2 ENG. GAUGE FOR NR 2 ENG IND 120 PERCENT, ABORTED T/O. PWR LVRS BROUGHT TO FLT IDLE, TQ ON NR 2 ENG STAYED AT 72 PERCENT. CONDITION LVRS BROUGHT BACK AND TQ ON NR 2 ENG RETURNED TO NORM. PULLED EXCEED PAGE WHICH SHOWED NR 2 ENG AT 141 PERCENT TQ FOR .02 SECONDS AT 78 PERCENT PROP SPEED. MX C/W OVERTQ INSPECT, NO DEFECTS NOTED. REPLACED OIL FILTER AND ROUTED FILTER FOR SOAP ANALYSIS. REPLACED NP PROBE AND EEC. PERFORMED GRD RUNS, NO DEFECTS.
Part: DIODE — DEFECTIVE (AUTO FEATHER SYS)
BLI- PROPELLER AUTO FEATHER SYSTEM WOULD NOT TEST. AIRCRAFT FERRIED FROM BLI-PDX FOR REPAIR. REPLACED DIODE BLOCK ASSEMBLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
Part: OVERHEAD PANEL — DEFECTIVE (COCKPIT)
SEA - PROPELLER AUTO FEATHER SYSTEM FAILS FUNCTIONAL CHECK. REPLACED 15VE COCKPIT OVERHEAD PANEL. COMPLIED WITH OPERATIONAL CHECK OF PANEL, CHECKS GOOD. PERFORMED PROPELLER AUTO FEATHER CHECK, OPERATIONAL CHECK GOOD. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.
1996
Part: WINDSHIELD — DELAMINATION (LT COCKPIT)
OUTER PANE ON THE PILOTS WINDSHIELD DELAMINATED AND CRACKED ALONG THE TOP EDGE. DELAMINATION IS 15 INCHES BY .250 INCHES IN SIZE WITH NUMEROUS SMALL CRACKS AT THE TOP EDGE. WINDSHIELD REPLACED IAW MAINT MANUAL AND AIRCRAFT RETURNED TO SERVICE.
1995
Part: BULB — FAILED (LAVATORY)
SEA - LAV LIGHT IS DIM WHEN EMERGENCY LIGHTS ARE ON. BULB WAS REPLACED AND LIGHT OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.
Part: FAN — FAILED (AVIONICS)
SEA - BURNING ELECTICAL ODOR IN COCKPIT AFTER TAKEOFF. AIRCRAFT RETURNED TO SEA AND LANDED WITHOUT FURTHER PROBLEMS. ODOR TRACED TO AVIONICS FAN AND FAN FAIL CAS MESSAGE WAS ANNUNCIATED DURING THE COURSE OF TROUBLESHOOTING. FAN PLACED ON MEL 21-6.
Part: EEL BULB — FAILED (CABIN)
PDX - AFT CABIN EMERGENCY LIGHT INOP. BULB WAS REPLACED AND LIGHT OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.
Part: CIRCUIT BREAKER — TRIPPED (COCKPIT)
THE HX FAN CIRCUIT BREAKER TRIPPED WITH SMOKE IN THE COCKPIT. RESET THE HX CIRCUIT BREAKER AND THE FAN OPERATIONAL CHECKED NORMAL. THE AIRCRAFT WAS RETURNED TO SERVICE.
Part: EEL BREAKER — TRIPPED (CABIN)
PDX - THE EMERGENCY ESCAPE LIGHTS CIRCUIT BREAKER WAS FOUND POPPED ON THE GROUND. RESET CIRCUIT BREAKER OPERATIONAL CHECK GOOD. NO DEFECTS NOTED AND A/C WAS RETURNED TO SERVICE.
Part: EEL — MALFUNCTIONED (CABIN)
SEA - EMERGENCY LIGHTING FLICKERED ON FINAL THEN WENT OFF AFTER LANDING. UNABLE TO DUPLICATE ON GROUND. FLIGHT CONTINUED TO PDX WHERE PROBLEM RECURRED. PDX MAINTENANCE REPLACED PANEL 15VE. GROUND TESTED AND A/C RELEASED FOR SERVICE.
Part: EEL — MALFUNCTIONED (CABIN)
GEG - WHEN CREW SELECTED DOUBLE CHIME TO SIGNAL PASSING 10,000 FEET THE EMERGENCY LIGHTS ACTIVATED AND COULD NOT BE TURNED OFF. FLIGHT LANDED WITHOUT INCIDENT. FOUND WIRE BUNDLE AT 15VEA PINCHED. REPOSITION BUNDLE SYSTEM OPERATED NORMAL. AIRCRAFT RELEASED FOR SERVICE.