N1037N
Registered owner: MARTINAIRE AVIATION LLC, TX (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| MARTINAIRE AVIATION L.L.C. (MT9A) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
Maintenance disclosures
WHILE PERFORMING A FLEET CAMPAIGN DIRECTIVE CREATED TO INSPECT THE HORIZONTAL STABILIZER MOUNT BOLTS, IT WAS FOUND THAT ALL FOUR OF THEM WERE CORRODED.
DURING A RECENT SCHEDULED INSPECTION, CRACKS WERE FOUND IN THE SUPPORT DOUBLER EMANATING ACROSS THE LOWER LT MOUNT BOLT HOLE OF THE AFT ELEVATOR BELLCRANK MOUNT. ALSO SEVERAL ADJACENT RIVETS IN THIS DOUBLER WERE ALSO CRACKED ACROSS THEIR HOLES AND THE DOUBLER WAS DISTORTED. IT WAS DISCOVERED THAT THE 2 SUPPORT ANGLE BRACKETS FOR THE AFT ELEVATOR MOUNT BRACKET WERE NOT INSTALLED, WHICH ALLOWED THE DOUBLER TO FLEX. HC
PILOT REPORTED THE NR 1 AVIONICS SWITCH WAS STUCK AND THE NR 2 AVIONICS SWITCH WAS ALSO REPORTED INOPERATIVE WHEN PLACED IN THE ON POSITION. ON INSPECTION, FOUND THAT BOTH AVIONICS SWITCHES HAD FAILED. IT WAS ALSO LATER DETERMINED THAT THE 2 SWITCHES WERE WIRED INCORRECTLY WHEN REFERENCED TO THE WIRING DIAGRAM. THE WIRING WAS CONFIGURED SO THAT IF THE NR 2 SWITCH FAILED THE NR 2 BUSS COULD NOT BE ENERGIZED USING THE AVIONICS BUSS TIE SWITCH.
DURING REPLACEMENT OF NR 1 AND NR 2 AVIONICS MASTER SWITCHES IT WAS NOTED THAT THE AVIONICS BUSS TIE SWITCH WAS MISSED WIRED. THE BUSS TIE SWITCH IS TO BE WIRED FROM THE OUTPUT OF AV NR 1 BUSS MASTER TO OUTPUT OF THE AV NR 2 BUSS MASTER. THIS AIRCRAFT TIE SWITCH WAS WIRED FROM THE INPUT OF THE AVNR 1 BUSS MASTER TO THE OUTPUT OF THE AVNR 2 MASTER. THIS ALLOWED THE BUSS TIE SWITCH TO POWER THE NR 2 AVIONICS BUSS WITHOUT EITHER BUSS MASTER SWITCH ON AND WOULD NOT ALLOW THE NR 1 BUSS TO BE CROSS TIED TO THE NR 2 BUSS IF THE NR 1 SWITCH HAD FAILED. THIS IS THE SECOND AIRCRAFT FOUND LIKE THIS AND BOTH AIRCRAFT APPEAR TO HAVE THE FACTORY INSTALLED SWITCHES AND WIRING IN THEM.
THE PILOT REPORTED THE NR1 AVIONICS SWITCH FOR ACFT WAS STUCK ON AND THE NR 2 AVIONICS SWITCH WAS INOPERATIVE. THE PILOT REPORTED THE CONDITION TO THE TOWER, SHUTDOWN ALL AVIONICS DUE TO OVERHEATING AND LANDED USING TOWER LIGHT SIGNALS. UPON INSPECTION IT WAS DETERMINED THAT THE NR 1 SWITCH HAD FUSED ITSELF IN THE ON POSITION AND THE NR 2 SWITCH WAS OPEN. WHEN REPLACEMENT SWITCHES WERE ORDERED MFG STATED THAT THE PART IAW THE IPC WAS NO LONGER PRODUCED. THE CURRENT PART USED WAS FOR A LATER SN AIRCRAFT. WHEN QUESTIONED FURTHER MFG ENGINEERING REPLACED THE SWITCH IN BY EO ON 2/21/1997.
THE SEALED BEARING WAS CORRODED AND FROZEN, ALSO THE BEARING WAS CORRODED TO THE BOLT. (K)
THE SEALED BEARING WAS CORRODED AND FROZEN. ALSO, THE BEARING WAS CORRODED TO THE BOLT. (K)