Service difficulty report · Frame · Boeing 757251

Difficulty date
March 13, 2026
Submitted
March 16, 2026
Operation
Air carrier
Aircraft
N556NW
Make and model
Boeing 757251
Aircraft serial
33392
Aircraft time
63,432 hours, 29,195 cycles
Part
Frame
Condition
Cracked
Location
Zone 200
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

CRACK WAS FOUND OF 0.203IN LENGTH APPROX ON THE STA 1640 FUSELAGE FRAME INNER-CHORD FWD RETURN FLANGE RADIUS, LOCATED 0.500IN BELOW THE FASTENER HOLE AT S-14L, IN REF CARD 5311-01218-01A JOB # 106-0001, STEP 7. FRAME ON STA 1640 BETWEEN STRG 9LH AND STRG 20LH WAS REPAIRED PER PRI 632412-14 REV. 0 TO 2 AND ER/A- 632412-14AD REV. ORIGINAL SECTION I : PERMANENT REPAIR. (1493045) (AIRCRAFT GROUNDED)