Service difficulty report · Housing Assy · Bell 412

Difficulty date
November 12, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N3911L
Make and model
Bell 412
Aircraft serial
33023
Engine
Allsn 250C47B
Part
Housing Assy
Part number
3026669
Condition
Mismanufactured
Location
Eng Oil
Part time
80 hours
Stage of operation
IN
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

MISMANUFACTURED, SEAT FOR RELIEF VALVE NOT FINISHED. OIL PRESSURE SLOW TO COME UP AND LOW AT 100%. REMOVED FROM ENGINE S/N CPPS-TB0040 AT ENGINE TOTAL TIME 80:00. REPLACEMENT HOUSING AND BUILD UP PARTS WERE RECEIVED AGAINST OUR RO#8077 AND SO#S:600971 AND 00032722, INVOICE 546987, 547438, 547665 AND 548081.

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