N309UA

ALASKA CTR FOR UNMANNED ACFT X6A · Rotorcraft · 6 engines · 0 seats · Valid Registration

Registered owner: UNIVERSITY OF ALASKA FAIRBANKS, AK (owner ≠ operator)

Operators of this aircraft

Who operated this tail, and how firmly we know it.

OperatorRolePeriodBasis
UNITED AIRLINES, INC. (CALA)Operatoron 2006-03-23Operator named in NTSB report

Accident & incident history

Incident · 2006-03-23 Operator named in NTSB report
Boeing 737-300 No injuries Part 121UNITED AIRLINES, INC.

Operated by UNITED AIR LINES INC (per NTSB report)

Source: NTSB case OPS06IA007

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.

51 reports on file, 1995-06-07 – 2008-07-30.

OTHER · 2008-07-30 Unresolved
ATA 2565

Part: O-RING — LEAKING (SLIDE BOTTLE)

LOW BOTTLE. GAUGE ADAPTER & RUPTURE DISK O-RING LEAKING. REPLACED WITH NEW.

Source: SDR 2008UALA04047
OTHER · 2008-07-25 Unresolved
ATA 2300

Part: SELECTOR PANEL — FAULTY (COCKPIT) · airframe 61,285 hrs · 36,226 cycles

F/O OXYGEN MASK MIC IS INOP. AFTER TROUBLE SHOOTING FOUND AUDIO SELECT PANEL FAULTY. REPLACED FIRST OBSERVER'S AUDIO SELECTOR PANEL OP CHECK GOOD. ACFT OK FOR SERVICE.

Source: SDR 2008UALA03981
NO TEST · 2008-07-05 Unresolved
ATA 3350

Part: BATTERY PACK — FAULTY (EMERGENCY LIGHT) · airframe 61,150 hrs · 36,146 cycles

EEL TRACK DOES NOT ILLUMINATE AT SEAT ROW 17 THRU 21. *S/D* SUSPECT FAULTY BATTERY PACK. REPLACED BATTERY PACK, OP CHECKED GOOD. AC OK FOR SERVICE.

Source: SDR 2008UALA03738
INADEQUATE Q C; NO TEST · 2008-05-31 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 60,867 hrs · 35,964 cycles

LAST 10 FEET OF EMERGENCY EXIT LIGHTS INOP. SUSPECT FAULTY LIGHT ASSEMBLY. REPLACED LIGHT ASSEMBLY ROW 17 THRU 21. OP CHECKS GOOD. AC OK FOR SERVICE.

Source: SDR 2008UALA03123
INADEQUATE Q C · 2008-05-21 Unresolved
ATA 2565

Part: SLIDE — OUT OF POSITION (R2 DOOR) · airframe 60,793 hrs · 35,915 cycles

DOOR 2R SLIDE GIRT IS PARTIALLY OUT OF THE CONTAINER. SUSPECT IMPROPERLY INSTALLED. REPOSITION THE CABLE. AC OK FOR SERVICE.

Source: SDR 2008UALA02945
OTHER · 2008-04-18 Unresolved
ATA 3510

Part: OXYGEN MASK — LEAKING (CREW) · airframe 60,930 hrs · 35,717 cycles

CREW O2 NEEDS SERVICE. FOUND FIRST OBSERVERS O2 MASK LEAKING AT QUICK DISCONNECT FITTING, REPLACED MASK AND STOWED PER AMM 35-12-85. AC OK FOR SERVICE.

Source: SDR 2008UALA02296
WARNING INDICATION · 2008-01-25 Unresolved
ATA 2913

Part: PUMP — FAILED (NR 1 ENGINE) · airframe 60,076 hrs · 35,485 cycles

RTFL DUE TO NR 1 ENGINE HYDRAULIC PUMP FAILURE. NR 1 ENGINE DRIVEN PUMP FOUND FAULTY. REPLACED NR 1 ENGINE DRIVEN PUMP. REPLACED NR 1 HYD EDP CASE DRAIN FILTER. NO METAL FOUND IN FILTER. CHANGED FILTER (P/N FLA161001144) PRECAUTIONARY, NO LEAKS NOTED ON ENG RUN.

Source: SDR UALA2008111300445
INADEQUATE Q C · 2008-01-25 Unresolved
ATA 2913

Part: PUMP — FAILED (NR 1 ENGINE) · airframe 60,076 hrs · 35,485 cycles

RTFL DUE TO NR 1 ENGINE HYDRAULIC PUMP FAILURE.

Source: SDR 2008UALA00445
Earlier reports · 1995–2007 · 43 reports

2007

OTHER · 2007-10-24 Unresolved
ATA 3350

Part: LIGHT — LOOSE (CABIN) · airframe 59,453 hrs · 35,100 cycles

EMERGENCY LIGHT CAME LOOSE FROM FLOOR. REPLACED DAMAGED LIGHT AND SECURED COVER.

Source: SDR 2007UALA04381
NO TEST · 2007-10-03 Unresolved
ATA 3397

Part: FEEDER CABLE — UNSECURE (EMERGENCY LIGHTS) · airframe 59,286 hrs · 34,991 cycles

FOUND EEL FLOOR LIGHTS INOP FROM SEAT 17 TO SEAT 21. REATTACHED FEEDER CABLE AND SECURED. OP CHK GOOD.

Source: SDR 2007UALA04058
NO TEST · 2007-10-03 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 59,286 hrs · 34,991 cycles

FOUND EEL FLOOR LIGHT INOP AT FWD FIRST CLASS CLOSET. REPLACED LIGHT STRIP. OP CHK GOOD

Source: SDR 2007UALA04057
NO TEST · 2007-08-13 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 58,903 hrs · 34,763 cycles

FLOOR EMERGENCY EXIT LIGHTS 21 ABC INOP. REPLACED STRIP.

Source: SDR 2007UALA03133
NO TEST · 2007-06-21 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (EXTERIOR) · airframe 58,491 hrs · 34,499 cycles

LEFT OVERWING EXTERIOR EMEGENCY LIGHT INOP. RELAMPED OPS CHK GOOD.

Source: SDR 2007UALA02174
NO TEST · 2007-06-21 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (EXTERIOR) · airframe 58,491 hrs · 34,499 cycles

LEFT AFT BODY FAIRING EXTERIOR EMERGENCY LIGHT INOP. RELAMPED OPS CHK GOOD.

Source: SDR 2007UALA02175
NO TEST · 2007-05-20 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 58,223 hrs · 34,337 cycles

EEL LIGHTS INOP AFT OF ROW 18. REPLACED CABLE & TWO LAMPS.

Source: SDR 2007UALA01562
FALSE WARNING · 2007-05-12 Unresolved
ATA 3260

Part: HORN — FAULTY (WARNING SYSTEM) · airframe 58,173 hrs · 34,303 cycles

LANDING GEAR WARNING HORN CANNOT BE SILENCED WITH BUTTON. [06-14-07] REPLACED AURAL WARNING UNIT.

Source: SDR 2007UALA01494
INADEQUATE Q C · 2007-04-28 Unresolved
ATA 5210

Part: HANDLE — OUT OF POSITION (L2 DOOR) · airframe 58,079 hrs · 34,235 cycles

DOOR 2L OUTSIDE DOOR HANDLE CAME OUT OF STOWED POSITION DURING FLIGHT. [SUP 05-16-07] CAUSE UNKNOWN. ALL CHECKS WERE NORMAL.

Source: SDR 2007UALA01361
SMOKE/FUMES/ODORS/SPARKS · 2007-03-29 Unresolved
ATA 3040

Part: THERMAL SWITCH — FAILED (WINDSHIELD) · airframe 57,940 hrs · 34,229 cycles

LIGHT BURNING ODOR FROM COCKPIT WINDOW L5, WINDOW FELT HOT. REPLACED WINDOW & THERMAL SWITCH.

Source: SDR 2007UALA00938
OTHER · 2007-02-07 Unresolved
ATA 7130

Part: FIRESEAL — DAMAGED (NR 2 ENGINE) · airframe 57,448 hrs · 33,830 cycles

NR 2 ENGINE PYLON FIRE SEAL ASSY AT FWD END OF REVERSER HAS HOLE WORN IN IT AT CENTER LINE OF PYLON. MAJOR REPAIR. REMOVED DAMAGE. INSTALLED WEB REPAIR PER SRM 51-70-13.

Source: SDR 2007UALA00375

2006

NO TEST · 2006-10-09 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 56,481 hrs · 33,238 cycles

FLOOR STRIP LIGHTS INOP LEFT, AFT CABIN REPLACED 3 EEL LIGHT STRIPS.

Source: SDR 2006UALA01942
OTHER · 2006-09-25 Unresolved
ATA 5330

Part: SKIN — CRACKED (FUSLAGE) · airframe 56,383 hrs · 33,177 cycles

AFT GALLEY DOOR FUSELAGE SKIN CRACKED AT UPPER HINGE CUTOUT. MAJOR REPAIR: MAJOR REPAIR INSTALLED PER SRM 53-60-01 REPAIR 5.

Source: SDR 2006UALA01862
OTHER · 2006-09-22 Unresolved
ATA 5700

Part: SKIN — CRACKED (NR 3 SLAT) · airframe 56,383 hrs · 33,177 cycles

NR 3 SLAT LWR EXT SKIN CRACKED AT 3 FASTENERS BELOW ACTUATOR. MAJOR REPAIR: SLAT REPAIRED PER SRM 57-43-01 REPAIR 6.

Source: SDR 2006UALA01836
NO TEST · 2006-05-16 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (CABIN) · airframe 55,367 hrs · 32,562 cycles

EEL LIGHTS ARE INOP AT AFT SEGMENT OF FLOOR AISLEWAY.

Source: SDR 2006UALA00951
OTHER · 2006-04-26 Unresolved
ATA 5330

Part: SKIN — CRACKED (FUSELAGE) · airframe 55,278 hrs · 32,500 cycles

FOUND CRACK RT SIDE FUSELAGE EVEN WITH WING LEADING EDGE, BETWEEN PASSENGER WINDOWS, ONE INCH BELOW ROW OF RIVETS, MEASURE APPROX 3 INCHES LONG FORE TO AFT. INSTALLED DOUBLER/TRIPLER REPAIR PER UA EVA-60265 A.

Source: SDR 2006UALA00824
OTHER · 2006-01-20 Unresolved
ATA 3350

Part: LIGHT — INOPERATIVE (EMERGENCY EXIT) · airframe 54,533 hrs · 32,053 cycles

RIGHT OVERWING LIGHT INOP BY EMERGENCY EXIT.

Source: SDR 2006UALA00102

2005

OTHER · 2005-06-27 Unresolved
ATA 3397

Part: CABLE — DAMAGED (EMERGENCY LIGHTS) · airframe 53,031 hrs · 31,159 cycles

EMERGENCY EEL LIGHTS INOP FROM ROW 17 AFT TO AND INCLUDING EEL STRIP IN FRONT OF AFT GALLEY CART STOWAGE COMPARTMENT. SUPPLEMENTAL DATA UPDATE EEL CABLE WAS DAMAGED, REPLACED CABLE.

Source: SDR 2005UALA00603
OTHER · 2005-04-11 Unresolved
ATA 5330

Part: SKIN — DENTED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

FUSELAGE DENT STA 389 BETWEEN STR 17L AND 18L. INSTALLED DOUBLER REPAIR.

Source: SDR 2005UALA00338
OTHER · 2005-04-03 Unresolved
ATA 5330

Part: BEAR STRAP — DAMAGED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

AFT CARGO DOOR CUTOUT HAS PRE-EXISTING CUTOUT IN BEAR STRAP FOR REPAIR. AFTER AFT FUSELAGE SKIN REPLACEMENT, INSTALLED DOUBLER/TRIPLER REPAIR.

Source: SDR 2005UALA00297
OTHER · 2005-04-01 Unresolved
ATA 5340

Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

STATION 727A STRINGER CLIP IS CRACKED AT STR 20R. REPLACED STRINGER CLIP.

Source: SDR 2005UALA00288
OTHER · 2005-03-31 Unresolved
ATA 5315

Part: FLOORBEAM — CORRODED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

STATION 1016 FLOORBEAM UPPER T-CAP HAS CORROSION FROM LBL 25 TO LBL 45. REPLACED T-CAP.

Source: SDR 2005UALA00287
OTHER · 2005-03-31 Unresolved
ATA 5321

Part: PRESSURE PANEL — CRACKED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

LEFT STA 664 PRESSURE DECK WEB IS CRACKED AT APPROXIMATELY LBL 30 JUST FWD OF OUTBOARD AILERON TOWER SHAFT. MAJOR REPAIR ACCOMPLISHED. CUT OUT CRACK, FABRICATED AND INSTALLED A DOUBLER REPAIR.

Source: SDR 2005UALA00276
OTHER · 2005-03-30 Unresolved
ATA 5330

Part: SKIN — GOUGED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

FWD CARGO DOOR CUTOUT FWD EDGE IS GOUGED AT STR 24R. MAJOR REPAIR ACCOMPLISHED. BLENDED DAMAGE AND INSTALLED DOUBLER REPAIR.

Source: SDR 2005UALA00275
OTHER · 2005-03-30 Unresolved
ATA 5340

Part: STRINGER CLIP — CRACKED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

STRINGER CLIP CRACKED AT STA 787 STRINGER 21 RIGHT. MAJOR REPAIR ACCOMPLISHED. REMOVED AND REPLACED STRINGER CLIP.

Source: SDR 2005UALA00273
OTHER · 2005-03-30 Unresolved
ATA 5311

Part: FRAME — CRACKED (FUSELAGE) · airframe 52,517 hrs · 30,863 cycles

STA 616 FRAME IS CRACKED BELOW STR 17L. MAJOR REPAIR ACCOMPLISHED. TRIMMED DAMAGE AND INSTALLED REPAIR ANGLE.

Source: SDR 2005UALA00272

2004

OTHER · 2004-03-04 Unresolved
ATA 5330

Part: SKIN — DENTED (FUSELAGE) · airframe 49,695 hrs · 29,227 cycles

DENT LOCATED 32 INCHES AFT OF THE FWD CARGO DOOR FROM ABOUT 10 INCHES BELOW THRESHOLD, DENT MEASURING 20 INCHES L X 1.8875 INCH W X 0.065 INCH D. MAJOR REPAIR ACCOMPLISHED. INSTALLED DOUBLER REPAIR.

Source: SDR 2004UALA00195
OTHER · 2004-03-04 Unresolved
ATA 5311

Part: SKIN — DENTED (FUSELAGE) · airframe 49,695 hrs · 29,227 cycles

DENT LOCATED 3 INCHES AFT OF THE AFT FRAME OF THE FWD CARGO DOOR CUTOUT. MAJOR REPAIR ACCOMPLISHED. INSTALLED DOUBLER REPAIRS.

Source: SDR 2004UALA00188

2002

FALSE WARNING · 2002-07-26 Unresolved
ATA 2612

Part: CONNECTOR — SHORTED (FIRE WARNING) · airframe 46,062 hrs · 26,932 cycles

DURING CLIMBOUT, APU FIRE LIGHT ILLUMINATED WITH THE APU OFF. ON SECOND OCCURRENCE, APU FIRE HANDLE PULLED, BOTTLE DISCHARGED, AND RETURNED TO FIELD. INSPECTED APU OVERHEAT DETECTION SYSTEM AND FOUND A SHORT TO GROUND AT CONNECTOR D4934P ON BOTH PINS A & C. REPLACED CONNECTORS D1876 AND D1878. APU FIRE DETECTION SYSTEM CHECKED GOOD.

Source: SDR 2002UALA01217

2001

OTHER · 2001-03-27 Unresolved
ATA 5532

Part: SKIN — DENTED (VERTICAL STAB) · airframe 42,515 hrs · 24,823 cycles

DENT IN VERTICAL STABILIZER LEADING EDGE APPROXIMATELY 8 INCHES ABOVE THE FUSELAGE. REPAIRED DENT IN VERTICAL STABILIZER LEADING EDGE. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00339
INADEQUATE Q C · 2001-03-27 Unresolved
ATA 5743

Part: ATTACH FITTING — DAMAGED (MLG BEAM) · airframe 42,515 hrs · 24,823 cycles

EXCESSIVE MATERIAL REMOVED DURING BLEND OUT ON RT MAIN LANDING GEAR SUPPORT BEAM ATTACH FITTING. REPLACED THE RT MAIN LANDING GEAR SUPPORT BEAM ATTACH FITTING. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00336
INADEQUATE Q C · 2001-03-27 Unresolved
ATA 5315

Part: FLOORBEAM — DAMAGED (FUSELAGE) · airframe 42,515 hrs · 24,823 cycles

CABIN FLOORBEAM STA 947 HAS EXCESSIVE MATERIAL REMOVED. REPAIRED CABIN FLOORBEAM. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00337
OTHER · 2001-03-21 Unresolved
ATA 5230

Part: SKIN — DENTED (CARGO DOOR) · airframe 42,512 hrs · 24,821 cycles

AFT CARGO DOOR EXTERNAL SKIN DENTED ABOVE THE HANDLE AREA. REPAIRED DENTS ON AFT CARGO DOOR. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00290
OTHER · 2001-03-21 Unresolved
ATA 5311

Part: FRAME — GOUGED (FUSELAGE) · airframe 42,512 hrs · 24,821 cycles

AFT PIT BODY FRAME STA 787 RBL 16 GOUGED. REPAIRED FRAME. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00291
OTHER · 2001-03-17 Unresolved
ATA 5240

Part: STOP FITTING — CRACKED (GALLEY DOOR) · airframe 42,512 hrs · 24,821 cycles

FORWARD GALLEY DOOR LOWER AFT STOP FITTING FRAME CRACKED. REPAIRED CRACKED FRAME. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00270
OTHER · 2001-03-17 Unresolved
ATA 5230

Part: TEE CHORD — CRACKED (CARGO DOOR) · airframe 42,512 hrs · 24,821 cycles

FORWARD CARGO DOOR CROSSBEAM AFT END OUTER TEE CHORD CRACKED. REPAIRED CRACKED TEE CHORD. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00272
OTHER · 2001-03-17 Unresolved
ATA 5230

Part: BEAM — CRACKED (CARGO DOOR) · airframe 42,512 hrs · 24,821 cycles

AFT CARGO DOOR LOWER CROSS BEAM CRACKED. REPAIRED CRACKED CROSS BEAM. MAJOR REPAIR ACCOMPLISHED.

Source: SDR 2001UALA00271

2000

FLT CONT AFFECTED · 2000-10-06 Unresolved
ATA 2751

Part: INDICATOR — FAILED (COCKPIT) · airframe 41,298 hrs · 24,199 cycles

LEADING EDGE AND TRAILING EDGE FLAPS WOULD NOT RETRACT. *S/D* REPLACED R123 FLAP ASYMMETRY SHUTOFF RELAY AND TRAILING EDGE FLAP POSITION INDICATOR. FLAP SLAT SYSTEM, OPS CHECKS NORMAL.

Source: SDR 2000UALA00582

1999

FALSE WARNING · 1999-02-10 Unresolved
ATA 2613

Part: OVERHEAT ELEMENT — MALFUNCTIONED (RT WING)

RIGHT HAND WING-BODY OVERHEAT WARNING. *S/D* REPLACED THE RIGHT WING LEADING EDGE DETECTOR ELEMENT ITEM M1204, REFERENCE MM 26-18-11 PG 401, OPS CHECK OK.

Source: SDR 99UAL900094

1998

FLUID LOSS; WARNING INDICATION · 1998-07-24 Unresolved
ATA 2910

Part: FITTING — LOOSE (B-HYD SYST)

B-HYDRAULIC SYSTEM LOW PRESSURE LIGHT CAME ON IN FLIGHT AFTER LOSS OF B-HYDRAULIC SYSTEM QUANTITY. *S/D* AIRCRAFT MAINTENANCE TECHNICIAN FOUND T-FITTING LEAKING IN THE RIGHT WHEEL WELL. SECURED FITTING. FILLED AND PRESSURE CHECKED, NO LEAKS FOUND. ALSO, REPLACED B-SYSTEM ELECTRIC AND ENGINE DRIVEN PUMP, BOTH B-SYSTEM CASE DRAIN FILTERS. OPS CHECK GOOD.

Source: SDR 98UAL900355

1997

FLAME/FIRE · 1997-09-07 Unresolved
ATA 7200

Part: ENGINE — FIRE (NR 2)

SMOKE FROM REAR OF NR 2 ENGINE AFTER SHUTDOWN. FOUND SMALL FIRE BURNING IN TAILPIPE. FIRE WENT OUT BY ITSELF. *S/D* ALL MAINTENANCE CHECKS WITHIN OPERATING LIMITS. NOT CONTINUED OPERATION PROBLEMS. ACCOMPLISHED FUEL SHUTOFF MEASUREMENT CHECK. CHECKS WITHIN LIMITS. PERFORMED ENGINE RUN AND POST INSPECTION. NO FUEL WAS FOUND IN THE TAILPIPE.

Source: SDR 97UAL900686

1995

WARNING INDICATION · 1995-06-16 Unresolved
ATA 5230

Part: DOOR — NOT SECURE (CARGO COMPT)

RETURNED TO FIELD WITH CARGO DOOR WARNING LIGHT. FOUND FORWARD CARGO DOOR NOT FULLY SECURED.

Source: SDR 95UAL900001
FALSE WARNING · 1995-06-07 Unresolved
ATA 5280

Part: SENSOR — OUT OF ADJUST (CARGO DOOR)

RETURNED TO FIELD WITH CARGO DOOR WARNING LIGHT. ADJUSTED PROX PLATE FOR DOOR WARNING SENSOR. OPS CHECKS OK. DOOR WAS FOUND CLOSED AND SECURED UPON ARRIVAL AT SFO.

Source: SDR 95UAL737082