Service difficulty report · Bolt

Difficulty date
June 23, 2000
Submitted
June 23, 2000
Operation
General aviation
Engine
Pwa JT8D7B
Part
Bolt
Part number
772568QQ
Condition
Failed
Location
Head
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
O

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

What was found

PMA BOLT PN 772568QQ, REPLACEMENT FOR OEM BOLT, PN 772568, FAILED AFTER 1.548.5 HOURS AND 932 CYCLES IN SERVICE. BOLT FRACTURED CAUSING HEAD TO BE INGESTED INTO THE N-2 COMPRESSOR DRIVE TURBINE WHERE EXTENSIVE DAMAGE WAS INFLICTED. BOLT WAS FROM AFFECTED BATCHES AS DESCRIBED IN FLIGHT STANDARDS INFORMATION BULLETIN FOR AW NR FSAW 00-07. (X)