Service difficulty report · Indicator · Boeing 737322

Difficulty date
October 15, 2007
Submitted
December 19, 2008
Operation
Air carrier
Aircraft
N378UA
Make and model
Boeing 737322
Aircraft serial
24653
Aircraft time
50,394 hours, 34,488 cycles
Engine
Cfmint CFM563C1
Part
Indicator
Part number
01812996
Part serial
412
Condition
Faulty
Location
Te Flap
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

UPON SELECTING FLAPS 5 - FLAP INDICATOR NEEDLES SPLIT, BUT NEVER GOT LOCK OUT. CREW USED ALT FLAP EXTENSION. *S/D* FLAP BYPASS VALVE WILL NOT ALLOW FLAPS TO EXTEND WITH HYDRAULICS. REPLACED RELAY 123, NO HELP. UPON SELECTING FLAPS 5 - FLAP INDICATOR NEEDLES SPLIT, BUT NEVER GOT LOCK OUT. CREW USED ALT FLAP EXTENSION. REPAIRED WIRE AT RT TRANSMITTER CONNECTOR PIN NR 2. BYPASS VALVE OPS CKS NORMAL. TRAILING EDGE FLAP POSITION IND REPLACED.