Service difficulty report · Warning Horn · Doug MD11F

Difficulty date
April 16, 2021
Submitted
April 16, 2021
Operation
Air carrier
Aircraft
N253UP
Make and model
Doug MD11F
Aircraft serial
48439
Aircraft time
75,907 hours, 16,691 cycles
Part
Warning Horn
Condition
False Activation
Location
Mlg
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

ATB - NO EMERG DECLARED & NO EMERG EQUIP USED - LANDED WITHOUT INCIDENT - AC TAKEN OOS** DUE TO GEAR WARNING HORN WITH GEAR UP & INDICATING UP.REF FIM 31-51-22-00 TESTED PSEU TARGETS AND FCC SENSOR THROTTLE RESOLVER READOUTS. ALL TEST PASS TESTED CAWS BOX TEST 5 LANDING FAILED. REPLACED CAWS PER 31-51-01, CHECKS GOOD. AMC NOTIFIED IPC 31-51-01-01 ITEM 020K

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