Service difficulty report · Connector · Boeing 7377CT

Difficulty date
February 24, 2019
Submitted
August 14, 2020
Operation
General aviation
Make and model
Boeing 7377CT
Aircraft time
49,782 hours
Engine
Cfmint CFM567B242
Part
Connector
Part number
BACC63BV22F55PN
Condition
Failed
Location
Te Flaps
Stage of operation
NR
How discovered
9
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

(CAN) CREW REPORTED THEY LANDED WITH SPLIT TRAILING EDGE FLAPS, WHICH SPLIT PRIOR TO FLAPS 2. BOTH LH AND RH FLAP POSITION TRANSMITTERS WERE REPLACED IAW AM 27-58-01. PN: OFF 18-1738-10 SN #`S: 3950 AND 3954. SNAG REPEATED ON TWO FLTIGHTS LATER WHEN ON APPROACH THE FLAPS DID NOT MOE WHEN SELECTED TO FLAPS 1. WENT BACK TO FLAP ZERO AND TRAILING EDGE FLAPS UP LANDING ACCOMPLISHED AND LEADING EDGE DEVICES EXTENDED USING ALTERNATE FLAPS EXTEND SWITCH. DURING TROUBLESHOOTING FOUND 4 MEG OHM RESISTANCE TO GROUND ON PINS K7 AND K8 ON FSEU D728B. REPLACED CONNECTORS D40024P, D40024J AND D275. RESISTANCE WENT AWAY. FLAP POSITION TESTED IAW MM 27-58-00. PN BACC63BV22F55PN BN 3510430, PN BACC63BP22C55SN BN 3067671, PN BACC63BP20D16SN BN 3421058. PSEU TESTED IAW MM 32-09-10. (TC# 20190226013)

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