SDR DALA1033795532

Service difficulty report · Sill · Boeing 757251

Difficulty date: November 17, 2010
Submitted: November 27, 2010
Operation: Air carrier
Aircraft: N532US
Make and model: Boeing 757251
Aircraft serial: 24263
Aircraft time: 68,796 hours, 28,091 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Sill
Condition: Corroded
Location: Fuselage
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 AFT CBN 4R SILL HAS CORROSION BS 1640-1681 RBL 54 BLENDED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15 BS 1640 TO 1660. REMOVED 2 EA SUPPORTS IAW SRM 51-40-02. FABRICATED 2 EA SUPPORTS TREATED, PRIMED & PAINTED DOOR SILLS IAW SRM 51-20-01 AND AMM 51-21-00. LOCATED AND DRILLED 2 EA DOOR SILLS IAW SRM 51-40-05. INSTALLED 2 EA DOOR SILLS ON AFT R-4 CABIN DOOR BS 1640-1681 RBL 54 IAW SRM 51-40-02.