SDR SWAA2026012755839

Service difficulty report · Support · Boeing 7378H4

Difficulty date: December 26, 2025
Submitted: January 27, 2026
Operation: Air carrier
Aircraft: N8642E
Make and model: Boeing 7378H4
Aircraft serial: 42525
Aircraft time: 38,126 hours, 18,579 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support
Condition: Damaged
Location: Zone 100
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

ELONGATED HOLES ON SUPPORT ZEE BTW BS 727C - 747, RBL 21 IN THE AFT CARGO BAY. TOOK INITIAL MEASUREMENTS OF HOLES ON THE SUPPORT ZEE, HOLE NR 1: D=0.246, HOLE NR 2: D=0.247, HOLE NR 3: D=0.246. REAMED HOLE NR 1: D=250, HOLE NR 2: D=0.250, HOLE NR 3: D=0.250. FOUND WITHIN TOLERANCE IAW SRM 51-40-05-0G-0, TABLE A, FIGURE 4, SHEET 2, & DWG 146A7502, SHEET 54, REV -.

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