SDR FDEA200911194036

Service difficulty report · Stringer · Boeing 75721B

Difficulty date: November 19, 2009
Submitted: November 23, 2009
Operation: Air carrier
Aircraft: N934FD
Make and model: Boeing 75721B
Aircraft serial: 24331
Aircraft time: 50,153 hours, 32,684 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Part number: 146N3110185
Condition: Corroded
Location: Zone 100
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

STRINGER, S-29L AT STA 1462 FOUND CORRODED. REPAIR CARRIED OUT AT STA 1470, STRINGER S-29L AS PER B757-200 SRM 53-00-03, REPAIR 2, FIG. 201 REV. 98. CHROMIC ACID AND ANODIZING CARRIED OUT AS PER ENGINEERING AUTHORISATION NR F-5100-133445, WORK INSTRUCTION 14, STRUCTURE GENERAL- ALTERNATE ANODIZE METHOD. REPAIR CLASSIFIED AS MAJOR AS PER GMM 6-2-100 CRITERIA.

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