Service difficulty report · Retainer · Boeing 75724APF

Difficulty date
September 2, 2010
Submitted
September 22, 2010
Operation
Air carrier
Aircraft
N424UP
Make and model
Boeing 75724APF
Aircraft serial
25369
Aircraft time
22,227 hours, 14,706 cycles
Part
Retainer
Part number
HFAB53RT011
Condition
Corroded
Location
Bs 1661-1681.8
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

INSPECTION TYPE:C3, SECTION 46, MAIN DECK FLOOR STRUCTURE HAS BARE METAL AT BS 1661-BS 1681.8 LBL 57- LBL 61. AREA OF SEVERE CORROSION (EXFOLIATION) BS 1650 LBL 61, .85 X.65" DIAMETER. DAMAGE EXCEEDS ALLOWABLE DAMAGE IAW SRM 53-60-13-1A, SHEET 5. REMOVED, FABRICATED AND INSTALLED NEW MAIN DECK FLOOR STRUCTURE (CREASE BEAM RETAINER) IAW SRM 51-40-02-0G, AMM 51-21-10-7, SRM 51-10-02-0G DWG 146N5064.

More about the Boeing 757-24APF