Service difficulty report · Fuel Cell · Boeing 75723A

Difficulty date
November 24, 2011
Submitted
November 28, 2011
Operation
Air carrier
Aircraft
N919FD
Make and model
Boeing 75723A
Aircraft serial
24636
Aircraft time
69,359 hours, 22,821 cycles
Part
Fuel Cell
Condition
Corroded
Location
Bs 920
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

CENTER TANK UPPER SKIN UPPER SURFACE FOUND CORRODED AT BS 920 , AT AREA JUST UNDER RT STUB BEAM CORROSION. REMOVED AND ASSESSED IAW SRM 57-10-01 MAX BLEND MATERIAL REMOVED 0.013 " MAX LIMIT 0.028" BLEND FOUND TO BE WITHIN LIMITS. DUE TO ACCUMALATIVE BLENDS IN AREA IN VARIOUS LOCATIONS IN CLOSE PROXIMITY IT IS INCORPORATED WITHIN EA F 5710-154331 BLENDED AND TREATED.

More about the Boeing 757-23A