N707AL
Registered owner: ALASKA AIRLINES INC, WA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
CATERING REPORTS DIFFICULTY OPENING L2 DOOR. GROUNDED - YES. REF AMM 52-13-00-860-801/-860-802, OPENED AND CLOSED L2 DOOR WITH EXTERIOR HANDLE W/ NO DEFECTS NOTED. NO ABNORMAL DOOR WARNING LIGHTS NOTED ON FLIGHTDECK OVERHEAD PANEL.
AFTER TAKEOFF, NR 2 ENGINE OIL PRESSURE LIGHT ILLUMINATED WITH CORRESPONDING LOW PRESSURE ON GAUGE. NR 2 CHIP LIGHT ILLUMINATED ON FINAL APPROACH BACK TO PATTERSON BASE. NR 2 ENGINE BECAME VERY ERRATIC, SURGING WITH TORQUE FLUCTUATIONS, AND T5 FLUCTUATIONS. MX PERSONNEL REPLACED NR 2 ENGINE.
DURING LANDING PHASE TO MC506 (OCEAN VICTORY) THE LANDING GEAR WOULD NOT EXTEND. NOTICED THE CIRCUIT WAS OUT. TRIED TO RESET IT BUT WOULD NOT STAY IN. DIVERTED AIRCRAFT FOR MAINTENANCE. MAINTENANCE FOUND WIRE BROKEN AT PIN R (CONNECTOR PLUG P105) REPAIRED BROKEN WIRE AND COMPLIED WITH LANDING GEAR RETRACTION CHECK, NO DEFECTS NOTED. (K)
FOUND SPALLING ON GEAR TEETH. RETURNED TO VENDOR FOR WARRANTY CREDIT.
AT A HOVER READY FOR TAKEOFF, NUMBER ONE ENGINE CHIP LIGHT ILLUMATED AT A HOVER. HAD LANDED AT GALLIANO TO REFUEL. MAINTENANCE FOUND ONE SLIVER ON AFT CHIP PLUG. CLEANED PLUG AND COMPLIED WITH 30 MINUTE RUN AND LEAK CHECK. OPS CHECK GOOD.
DURING FLIGHT, PILOT ENCOUNTERED MODERATE VIBRATION OF MAIN ROTOR FOR 3 SECONDS IN CRUISE FLIGHT THEN IT CEASED. THE AIRCRAFT WAS DIVERTED TO LAFOURCHE AIRPORT IS LANDED WITH NO FURTHER PROBLEM, THE MECHANIC FOUND BLUE MAIN ROTOR BLADE EROSION TAPE TORN HE REMOVED THE TAPE AND THE FOLLOWING DAY THE MAIN ROTOR BLADE WAS CHANGED.
TURBINE WAS REMOVED FROM AIRCRAFT DUE TO LOW POWER. REMOVED COMBUSTION SECTION AND FOUND SULPHADATION ON NR 1 WHEEL BLADES.
TURBINE CAME IN FOR SHOP VISIT FOR LOW POWER. BEGAN DISASSEMBLY OF TURBINE. REMOVED OUTER COMBUSTION CASE AND FOUND SULPHIDATION ON 1ST STAGE WHEEL. HAD 1 BLADE MISSING AND SEVERAL BROKEN BLADES. (M)
TURBINE CAME IN FOR SHOP VISIT FOR LOW POWER. BEGAN DISASSEMBLY OF TURBINE, REMOVED OUTER COMBUSTION CASE AND FOUND SULFIDATION ON 1ST STAGE WHEEL. HAD ONE BLADE MISSING AND SEVERAL BROKEN BLADES. THIS TURBINE HAD A ROLLS ROYCE LINER. HAVE WHEELS TESTED FOR PROPER COATING. (M)
DISCOVERED DURING DAILY INSPECTION, SUPPORT PN 76070-30019-101 (ALUMINUM) SECURING NR 1 EXTERNAL OIL FILTER HOUSING TO OIL COOLER COWLING FAILED FROM FATIGUE CRACK INDUCED BY NORMAL AIRCRAFT VIBRATIONS. REPLACE ALUMINUM SUPPORT WITH ONE MADE OF STAINLESS STEEL. NOTE: THIS IS AN ACTIVE IN-HOUSE MODIFICATION CURRENTLY C/W ON 14 OF 17 GULF COAST S-76'S.
DURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.
DURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.
DURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.
DURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.