Service difficulty report · Intercostal · Boeing 75733N

Difficulty date
February 7, 2022
Submitted
February 9, 2022
Operation
Air carrier
Aircraft
N57870
Make and model
Boeing 75733N
Aircraft serial
33525
Aircraft time
51,235 hours, 14,781 cycles
Part
Intercostal
Part number
141N515063
Condition
Cracked
Location
Floorsta345-365
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

SUPPORT TASK MAIN CABIN FLOOR STA 345 TO STA 365 INTERCOSTAL WEB CRACKED ON INSTALL, TRANSCRIBED FROM HAECO GSO NON ROUTINE 9281 700. REMOVED DAMAGED INTERCOSTAL, SUPPORT ANGLES AND PULLEY BRACKET I MARKED IAW BAC 5307, INSTALLED INTERCOSTAL AND SUPPORT ANGLES IA AW B757-300 SRM 51-40-02. FABRICATED NEW INTERCOSTAL IAW BAC DWG W BAC DWG 141N5150 REV BN AND B757-300 SRM 51-40-02. INSTALLED P 141N5150 REV BN. ALODINED AND PRIMED INTERCOSTAL IAW B757-300 SR ULLEY BRACKET IAW BAC DWG 251N6009 REV B AND B757-300 SRM 51-40- M 51-20-01 APPLIED TOP COAT AIW B757-300 SRM 51-21-01. PART 02 TOOL T8349L. HAECO GSO MECH V900838 INSP QC032

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