SDR 20010518CW001

Service difficulty report · Gyro · Mooney M20F

Difficulty date: April 30, 2001
Submitted: May 18, 2001
Operation: General aviation
Aircraft: N9514M
Make and model: Mooney M20F
Aircraft serial: 670091
System (JASC): 3421 · Attitude Gyro and Indicating System
Part: Gyro
Part serial: 01895
Condition: Contaminated
Location: Cockpit
Part time: 4,315 hours
Stage of operation: IN
How discovered: V
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 ANNUAL INSPECTION, FOUND LIQUID IN WINDOW OF GYRO, DISCONNECTED LINE TO HAVE WATER FLOW OUT, REMOVED INSTRUMENT. OPENDED CASE AND FOUND LONG-TERM CORROSION ON ALL INTERNAL PARTS. REPLACED WITH OVERHAULED INSTRUMENT. NO OTHER INSTRUMENTS CONTAINED WATER MAY HAVE GOTTEN WATER THROUGH A LEAKING EXTERIOR COWL DECK.

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