Service difficulty report · O-Ring · Boeing 75721B

Difficulty date
September 30, 2018
Submitted
October 2, 2018
Operation
Air carrier
Aircraft
N934FD
Make and model
Boeing 75721B
Aircraft serial
24331
Aircraft time
58,043 hours, 37,776 cycles
Part
O-Ring
Condition
Blown
Location
Fuel System
Stage of operation
CR
How discovered
O
Nature of condition
K
Precautionary procedure
A

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

What was found

LOSING FUEL FROM LEFT SIDE ESTIMATE OF 3000LBS. FOUND FUEL MANIFOLD FROM FFG TO THE HIGH PRESSURE PUMP SEAL BLOWN OUT ON THE HIGH PRESSURE PUMP SIDE, REF AMM 73-11-03-4-4 FIG 401 SHEET 2 VIEW C(2). REMOVED MANIFOLD REPLACED O-RINGS AND RE-INSTALLED MANIFOLD REF AMM 73-11-03-4-4. LEAK CHECK GOOD, RAN ENG REF JRH OPS CHECK AND LEAK GOOD. CLEANED RESIDUAL FUEL UP AS BEST WE CAN.

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