SDR AALA202106024403

Service difficulty report · Support · Airbus A321231

Difficulty date: May 6, 2021
Submitted: June 2, 2021
Operation: Air carrier
Aircraft: N535UW
Make and model: Airbus A321231
Aircraft serial: 3993
Aircraft time: 41,174 hours, 14,845 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support
Part number: D5348004320601
Condition: Corroded
Location: Frames 66-68
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

AIRCRAFT IN BASE MAINTENANCE: CORROSION FOUND ON LOWER SILL LOCATED AT STA FR66 TO FR68 STR 23L. FR66 L= 1.533 INCHES, W= 1.391 INCHES, D= 0.040 INCHES FR68 L= 2.769 INCHES, W= 0.975 INCHES, D= 0.035 INCHES FR68 L= 1.884 INCHES, W= 1.135 INCHES, D= 0.031 INCHES. REPLACED LOWER SILL LOCATED AT STA FR66 TO FR68 STR 23L PER SRM 51-72-11-911-001.

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