N991AL
Registered owner: AIRPLANE FACTORY INC, CA (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
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.
7 reports on file, 2011-03-07 – 2020-01-16.
Part: HYDRAULIC SYSTEM — FAILED · airframe 19,403 hrs · 13,323 cycles
HYDRAULIC SYSTEM FAILURE. PRESSURE DROPPED UPON FIRST NOTCH FLOP EXTENSION. BLEW GEAR DOWN AND USED EMERGENCY BRAKES HYDRAULIC FLUID LEAKING HEAVILY FROM UNDERSIDE OF PLANE NEAR BEACON LIGHT
Part: O-RING — LEAKING (HYD SYSTEM) · airframe 1,906 hrs · 13,136 cycles
LOW HYDRAULIC CAME ON 30 MINUTES OUTSIDE PHX HYDRAULIC PRESSURE DROPPED BELOW 600 PSI. MAINTENANCE TROUBLESHOT HYDRAULIC LEAK TO A LOOSE LINE ON LEFT HAND RETRACT ACTUATOR INSPECTED LINE NO DEFECTS NOTED REPLACED O-RING TIGHTENED RETURN LINES PERFORMED OP'S AND LEAK CHECKS I/A/W LEARJET 35A AMM 32-43-00 NO LEAKS NOTED OP'S CHECKED GOOD. AIRCRAFT RETURNED TO SERVICES
Part: ADF — FIRE (COCKPIT) · airframe 18,297 hrs · 12,731 cycles
ADF BECAME VERY HOT TO THE TOUCH DURING FLIGHT, IT WAS TURNED OFF. A FEW MINUTES LATER FLAMES APPEARED BETWEEN THE HF RADIO AND ADF.
Part: ADF — BURNED OUT · airframe 18,297 hrs · 12,731 cycles
ADF BECAME VERY HOT TO TOUCH DURING FLIGHT. THE UNIT WAS TURNED OFF, A FEW MINUTES LATER FLAMES APPEARED BETWEEN ADF AND HF RADIO.
Part: CAP — SEPARATED (LT WING TANK)
FUEL CAP SEPARATED FROM LEFT TIP TANK.
Part: COMPUTER — FAILED (YAW DAMPNER) · airframe 16,476 hrs · 11,790 cycles
PILOTS REPORTED THAT THE YAW DAMPER, WHEN ENGAGED, THE BALL WAS WAY OUT TO THE LEFT, WHEN DISENGAGED HAD TO RETRIM ACFT, WHEN ENGAGED SECONDARY YAW DAMPER WITH SAME RESULTS, DISENGAGED AGAIN TRIMMED ACFT AND ENGAGED AUTO PILOT WITH THE AUTO PILOT AND NOTICED A ROLLING ACTION. ELECTED TO RETURN TO DEPARTURE AND LAND. LANDING WAS COMPLETED WITH NO ISSUES.
Part: SENSOR — FAILED (DUCT TEMP) · airframe 14,336 hrs · 10,577 cycles
DUCT TEMP SENSOR FAILED TO ALLOW THE PRESSURIZARION SYS TO OVERTEMP THE DUCTING.