SDR ASAA2018030823969

Service difficulty report · Stiffener · Boeing 737990

Difficulty date: March 8, 2018
Submitted: March 20, 2018
Operation: Air carrier
Aircraft: N309AS
Make and model: Boeing 737990
Aircraft serial: 30857
Aircraft time: 59,215 hours, 23,367 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Part number: 147A5710U17
Condition: Corroded
Location: Bs 1016
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

MAIN CABIN AFT WET AREA BS 1016, RBL 28 STIFFENER CORRODED. ACFT GROUNDED. REMOVED THE STIFFENER , LOCATED, DRILLED, AND DEBURED A NEW STIFFENER IAW SRM 51-40-02, AND AMM 51-2-41. INSTALLED THE NEW STIFFENER IAW SRM 51-40-02, AND DWG 147A5700.