SDR DALA1035595533

Service difficulty report · Firewall · Boeing 757251

Difficulty date: December 13, 2010
Submitted: December 14, 2010
Operation: Air carrier
Aircraft: N533US
Make and model: Boeing 757251
Aircraft serial: 24264
Aircraft time: 70,100 hours, 28,578 cycles
Engine: Pwa PW2037
System (JASC): 5412 · Nacelle/Pylon, Bulkhead/Firewall
Part: Firewall
Condition: Chafed
Location: Nr 1 Naclle
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

DURING M-CHECK FOUND NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL INBD AFT SIDE SKIN IS CHAFED. BLENDED OUT CHAFED AREA ON NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL AND FOUND OUT OF LIMITS IAW SRM 54-51-02, PAGE 103. REMOVED FASTENERS AND CUT OUT DAMAGE AREA AT NR1 PYLON NACELLE STA 105 VERTICAL FIRE WALL IAW SRM 54-51-02, REPAIR 1, FIG 201. FABRICATED REPAIR DOUBLER AND FILLER AND INSTALLED FILLER ON VERTICAL FIRE WALL ON NR1 PYLON IAW SRM 54-51-02.