Service difficulty report · Wire · Lear 35A

Difficulty date
May 14, 2005
Submitted
May 14, 2005
Operation
Air carrier
Aircraft
N553V
Make and model
Lear 35A
Aircraft serial
35A141
Aircraft time
11,340 hours, 8,270 cycles
Part
Wire
Condition
Broken
Location
Electrial Connec
Part time
11,340 hours, 8,270 cycles
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING COMPLIANCE OF AD 82-01-05 R2, THE TEST OF THE STALL WARNING ACCELEROMETER FAILED TO FUNCTION PROPERLY. WHEN THE ACCELEROMETER WAS ROTATED PAST THE 45 DEGREE POSITION THE PULLER WOULD NOT WORK AT ALL. IN THE PROCESS OF TROUBLESHOOTING THE SYSTEM, TWO WIRES ATTACHED TO THE CONNECTOR OF THE ACCELEROMETER WERE FOUND BROKEN LOOSE. THE WIRES WERE RESOLDERED ONTO THE CANNON PLUG AND THE SYSTEM WORKED NORMAL. PROBABLE CAUSE. THE WIRES ARE VERY SMALL, AND DUE TO THE CONTINUED TESTING OF THE SYSTEM, HAD BEEN FLEXED SO MANY TIMES THAT THE FINALLY BROKE. ADDITIONAL NOTE: IN THE PROCESS OF TROUBLE SHOOTING THIS AIRCRAFT, THE ACCELEROMETER WAS REMOVED FROM ANOTHER AIRCRAFT. DURING THAT PROCESS, A WIRE WAS BROKE

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