SDR DALA2020012800509

Service difficulty report · Floorbeam · Boeing 757251

Difficulty date: January 20, 2019
Submitted: January 29, 2020
Operation: Air carrier
Aircraft: N552NW
Make and model: Boeing 757251
Aircraft serial: 26499
Aircraft time: 47,670 hours, 21,236 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 1469
Stage of operation: IN
How discovered: O
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

INITIAL INSPECTION. CORROSION ON STRINGER RBL: 2.90, 7.55, 10.45, 16.10 AND LBL: 2.90 STA: 1469 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: IN REF NRC 00147 ( CORROSIN LEVEL II )PREVIOUS REPAIR DOUBLERS AT STGR RBL 2.90, 10.45, AND 16.10 WERE REPLACED PER B757-200 SRM 53-00-53 REPAIR 1, FIGURE 201. (0911084)