Service difficulty report · Angle · Boeing 7378H4

Difficulty date
August 31, 2023
Submitted
October 3, 2023
Operation
Air carrier
Aircraft
N8550Q
Make and model
Boeing 7378H4
Aircraft serial
63579
Aircraft time
19,170 hours, 9,590 cycles
Part
Angle
Part number
NOTREPORTED
Condition
Corroded
Location
Zn 100 Fus Lower
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

FWD. CARGO COMPARTMENT L/H TRANSITION ANGLE AT STA. 500-500C LBL 24 HAS CORROSION AT NUMEROUS NUT PLATE HOLES. (MARKED)<[01] CORROSION AT FASTENER HOLE AT BS 500+10 OUT OF LIMITS PER SRM 53-00-53-1A-2.;[02] CUT AND REMOVED L/H TRANSITION ANGLE FROM BS 480+9 - 500I PER SRM 53-00-53.;[03] LOCATED AND DRILLED NEW L/H TRANSITION ANGLE STA 500-500C PER SRM 53-00-53-1A-2;[04] LOCATED AND DRILLED NEW L/H TRANSITION ANGLE STA 480+9 TO STA 500I PER SRM 53-00-53-1A-2;[05] DEBURRED AND TREATED L/H TRANSITION ANGLE AND REPAIR PARTS STA. 480+9 TO 500I PER SRM 51-20-01;[06] INSPECTED THE WORK ON C/A #5; NO DEFECTS NOTED.;[07] LOCATED AND DRILLED NEW L/H TRANSITION ANGLE STA 480+9 TO STA 500I PER SRM 53-00-53-2R-5. LOCATED AND DRILLED 2 EA REPAIR SPLICE PIECES AT STA 480+9 AND STA 500D+13 PER SRM 53-00-53-2R-5;[08] C/W INSPECTION.;[09] PRIMED TRANSITION ANGLES AND REPAIR PARTS PER SRM 51-20-10. INSTALLED CLICK BOND NUT PLATES ON 21 SEPT. 2023 AT 19:30 HRS. PER SRM 51-40-10;[10] INSTALLED L/H TRANSITION ANGLE AND REPAIR PARTS FROM STA 480+9 TO 500I PER SRM 53-00-53-2R-5 PERFORMED PUSH TEST FOR ALL NEWLY INSTALLED NUT PLATES PER SRM 51-40-10. ALL TESTED GOOD.;[13] VERIFIED C/A #12.;[14] REPAIRED FWD CARGO L/H TRANSITION ANGLE FROM STA 480+9 TO 500I PER SRM 53-00-53-2R-5 AND EA M-22-153-01550.;[15] VERIFIED REPAIR COMPLETED;[16] VERIFIED REPAIR COMPLETED

More about the Boeing 737-8H4