Service difficulty report · Drag Fitting · Boeing 757251

Difficulty date
July 13, 2026
Submitted
July 15, 2026
Operation
Air carrier
Aircraft
N550NW
Make and model
Boeing 757251
Aircraft serial
26497
Aircraft time
65,395 hours, 28,261 cycles
Part
Drag Fitting
Condition
Corroded
Location
Zone 400
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

IN REF CARD 5720-01100-02A STEP. 28, LT ENG DRAG FTG CLAMP, CORROSION POINTS ON FASTENER HOLE NR 2. LEVEL 2 CORROSION ON FASTENER HOLE NR 2 WAS REAMED AT FINAL DIMENSION 0.5780 PER CARD 5720-01100-02A STEP 29. INSPECTION HFEC WAS ACCOMPLISHED, NO CRACKS WERE FOUND AFTER REWORKED IAW AMDS 5720-01100-02A STEP 30 AND IAW NDT MANUAL PART 6, 51-00-16. (LP 1697830 - AIRCRAFT WAS GROUNDED).