SDR NSVA200600177

Service difficulty report · Autocoarsen Sys · Saab 340B

Difficulty date: October 10, 2006
Submitted: November 29, 2006
Operation: Air carrier
Aircraft: N339CJ
Make and model: Saab 340B
Aircraft serial: 339
Aircraft time: 26,423 hours, 32,888 cycles
System (JASC): 6123 · Propeller Feathering/Reversing
Part: Autocoarsen Sys
Part number: 8542M2
Part serial: 387
Condition: Unknown
Stage of operation: TO
How discovered: O
Nature of condition: J
Precautionary procedure: C

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

What was found

TAKEOFF ROLL POWER PUSHED UP AUTOCOARSEN LIGHT CAME ON. PERFORMED TROUBLESHOOTING IAW SAAB AMM 61-22-00, FAULT ISOLATION. CHECKED WIRING TO P3 SWITCHES AND TEST SWITCHES. NO FAULTS FOUND. REMOVED AND REPLACED AUTO COARSEN COMPUTER IAW SAAB AMM 61-22-00, OPS CHECK GOOD, P/N 8542M2, S/N ON: 206, S/N OFF: 387.

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