# SDR B4MR98001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N521DB](https://openairdocs.org/aircraft/N521DB), registered now
- Make and model: Boeing 727243
- Aircraft serial: 21266
- System (JASC): [5230 · Cargo/Baggage Doors](https://openairdocs.org/jasc/5230)
- Part: Frame
- Condition: Corroded
- Location: Cargo Door
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/B4MR98001

## Discrepancy

DURING ACCOMPLISHMENT OF RYAN EO RN 727-53-28, FOUND NR 2 CARGO DOOR FRAME AFT EDGE LOWER CORNER CORRODED.  REMOVED CORROSION IAW B727 SRM 51-10-6.  ULTRASONIC THICKNESS CHECK - INITIAL THICKNESS READINGS FRAME FLANGE AREA .044 TO .121, HAS NOMINAL THICKNESS .145, FRAME WEB THICKNESS .066 TO .070. INSTALLED REPAIR IAW AIA/E/2729.  NON-ROUTINE TASK CARD NUMBER 14983.

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