Service difficulty report · Angle · Boeing 7378H4

Difficulty date
April 23, 2023
Submitted
May 25, 2023
Operation
Air carrier
Aircraft
N8531Q
Make and model
Boeing 7378H4
Aircraft serial
63575
Aircraft time
19,946 hours, 9,687 cycles
Part
Angle
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

AFT CARGO STA 727G THRU STA 727H RH TRANS ANGLE HAS CORROSION<[01] REMOVED SURFACE CORROSION ON TRANSITION ANGLE. MATERIAL REMAINING THICKNESS IS .035 AND FOUND TO BE OUT OF LIMITE PER SRM 53-00-53-1A2.;[02] VERIFIED DAMAGE REMOVAL IS OUT OF LIMITS.;[03] CUT AND REMOVED AFT CARGO R/H TRANS ANGLE FROM STA 727F+11? TO STA 767 IAW SRM 53-00-53-2R-5.;[04] FABRICATED R/H REPAIR ZEE CHANNEL SIDEPLATE (TRANS ANGLE) AND SPLICE SIDEPLATE FROM STA 727F+11? TO STA 767 IAW SRM 53-00-53-2R-5.;[05] INSPECTED C/A 4.-FABRICATED R/H REPAIR ZEE CHANNEL SIDEPLATE (TRANS ANGLE) AND SPLICE SIDEPLATE FROM STA 727F+11? TO STA 767 IAW SRM 53-00-53-2R-5;[06] APPLIED ALODINED AND PRIMER TO ZEE CHANNEL SIDEPLATE (TRANS ANGLE) AND SPLICE SIDEPLATE IAW SRM 53-00-53-2R-5.;[07] VERIFIED CORRECTIVE ACTION #6. INSPECTION C/W.;[08] INSTALLED R/H ZEE CHANNEL SIDEPLATE (TRANS ANGLE) AND SPLICE SIDEPLATE FROM STA 727F+11? TO STA 767 IAW SRM 53-00-53-2R-5.;[09] INSTALLED ADHESIVELY BONDED NUTPLATE FROM STA 727F+11? TO STA 767 IAW SRM 51-40-10.;[10] REMOVED DAMAGED TRANSITION ANGLE AND REPLACED WITH NEW FABRICATED TRANSITION ANGLE FROM STA 727F +11 TO STA 767 PER SRM 53-00-53-2R-5. SEE PREVIOUS INDIVIDUAL STEPS FOR ACCOMPLISHED WORK;[11] ERIFIED NICHOLAS AYLOR (TECHNICIAN); 05-MAY-2023 08:53 UTC<BR>REMOVED DAMAGED TRANSITION ANGLE AND REPLACED WITH NEW FABRICATED TRANSITION ANGLE FROM STA 727F +11 TO STA 767 PER SRM 53-00-53-2R-5. SEE PREVIOUS INDIVIDUAL STEPS FOR ACCOMPLISHED WORK

More about the Boeing 737-8H4