SDR SWAA2021101115931

Service difficulty report · Angle · Boeing 7377H4

Difficulty date: September 8, 2021
Submitted: October 11, 2021
Operation: Air carrier
Aircraft: N760SW
Make and model: Boeing 7377H4
Aircraft serial: 27874
Aircraft time: 73,521 hours, 43,731 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Angle
Condition: Cracked
Location: Center Wing Box
Stage of operation: IN
How discovered: 9
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

CRACKED ANGLE LOCATED BS 693 AND RBL 24. REMOVED ANGLE IAW SRM 51-40-02. FORMED ANGLE IAW SRM 51-30-01, AND DWG 273A9112. HEAT TREATED TO 7075T73 IAW BAC5602, TABLE IV, AND TABLE XI. DRILLED THE NEW ANGLE IAW SRM 51-40-05 AND APPLIED PROTECTIVE TREATMENT IAW SRM 51-20-01. INSTALLED THE NEW ANGLE IAW SRM 51-40-02 AND DWG 273A9110, REV-.

More about the Boeing 737-7H4