Service difficulty report · Frame · Boeing 737900ER

Difficulty date
August 29, 2023
Submitted
October 6, 2023
Operation
Air carrier
Aircraft
N75425
Make and model
Boeing 737900ER
Aircraft serial
33460
Aircraft time
48,635 hours, 17,112 cycles
Part
Frame
Part number
141A170514
Condition
Damaged
Location
Sta.219.8
Stage of operation
IN
How discovered
O
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

FRAME AT STA.219.8 IS SEVERED AT S-24R. C/W AVO11125 REV A. REMOVED FRAME SECTION @STA 219.8 FROM SPLICE ON LFT SIDE TO DMGED SIDE ON RIGHT. REF AVO11125 STEP 9 - REMOVED MINIMAL DAMAGE FROM THE LOWER END OF THE FRAME ASSEMBLY REF SRM 53-10-11 AND SRM 53-00-07. REPORTED DAMAGE DIMENSIONS TO ENGINEERING. C/W AVO11178A STEPS A.1.B. IAW NDTM 6-51-00-00-23. NO CRACKS DETECTED. (RII) PERFORMED WEB AND OUTER CHORD TRIM OUT AND ENSURED FASTENER HOLES WEE CLEAN, ROUND AND IN GOOD CONDITION IN REF TO AVO11178 REV A STEPS 1 AND 2. NEED TO PERFORM NDT AND VISUAL INSPECTIONS IN REF TO STEPS 1.B, 3, 4, AND 5. C/W AVO11178 STEPS A.2. (3), (4). NO CRACKS NOTED AT THIS TIME. IAW 737 NDT/OEM MANUAL PT 6, 53-30-00, PROC 3, PT 6, 51-00-00, P ROC 16. ACCOMPLISHED RII INSPECTION OF LOWER CORD ASSEMBLY 219.8 BELOW R/H SPLICE PER GMM 09-25-05 OK TO INSTALL. FABRICATED LOWER REPAIR PARTS (BELOW R/H SPLICE) IN REF TO AVO11178 REV A, PAGE 2, STEP B , OK TO INSTALL LOWER SECTION OF FR 219.8 IN REF TO AVO11178 PAGES 2 & 3, STEP C. (PARTS LIST CHANGE TO 141A3505-116) AND WEB SPLICE P/N 141A3504-36 ACP. RII INSPECTION. VERIFIED P/NS OF WEB, OUTER CORD, WEB ACP. RII IAW GMM 09-25-05 & AVO11178 REV A. STEP B1 -1 WEB, -2 & ACCOMPLISHED INSPECTION OF FRAME AT 219.8 AND PARTS TO BE SPLICE, INNER & OUTER CHORD SPLICES, PER DAMAGE ITEM LIST AND -3 REPAIR ANGLES. VERIFIED MATERIAL. NO DEFECTS NOTED. INSTALLED PER AVO 11178 ; FOUND TO BE OK FOR INSTALLATION. PART NUMBER CHANGE TRANSMITTLES. NO D

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