Service difficulty report · Gearbox · Bell 212

Difficulty date
September 6, 2005
Submitted
December 2, 2005
Operation
General aviation
Make and model
Bell 212
Engine
Pwa PT6T3B
Part
Gearbox
Condition
Contaminated
Location
Nr 1 Rgb
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
E

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

What was found

FOUND A BOLT LOCKTAB IN NR 1 RGB CHIP DETECTOR HOUSING WHEN INVESTIGATING AN ENGINE CHIP LIGHT. ON FURTHER INVESTIGATION A SECOND LOCKTAB WAS FOUND IN THE VICINITY OF THE CHIP DETECTOR HOUSING. POWER SECTION WAS SEPARATED FROM THE C/BOX TO TROUBLESHOOT THE SOURCE OF THE LOCKTABS AND ONCE DONE TWO BOLT HEADS WERE FOUND INTHE C/BOX. A P&WC REP WAS ON HAND TO HELP DETERMINE THE SOURCE, AFTER A BOROS COPE INSPECTION AND P/N ON THE BOLT HEADS, IT WAS DETERMINED THAT THE FAULT WAS IN THE C/BOX. SERVICEABLE C/BOX INSTALLED AND A/C RETURNED TO SERVICE.

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