# SDR CALA2026090719274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2026
- Submitted: September 9, 2026
- Operation: Air carrier
- Aircraft: [N2639U](https://openairdocs.org/aircraft/N2639U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62650
- Aircraft time: 40,335 hours, 4,399 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 00060431786
- Condition: Dented
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026090719274

## Discrepancy

ON WALK AROUND FOUND DENT FWD OF EXT POWER DOOR.DENT IS IN SECTION 41, BS 276. DENT MEASURES 1.5INCH IN LENGTH, .5INCH WIDTH & .040 INCH DEEP. L/Y IS 33.33 ACP,D HFEC INSP NO CRACKS IAW NTM 51-00-00-23, PART 6.  SKIN IS DENTED IN  0.105 IN. WITH .002 MATERIAL LOSS.  REWORKED & BLENED DAMAGE AREA. L=3.2 W=3.0 Y=.095  L/Y =31 WITH IN LIMITS IAW SRM 53-00-01.   MATERIAL LOSS ACP 777 UT (4) 51-00-10 PROCEDURE 1.  ACCOMP HFEC(6) 51-00-02 PROCEDURE 2. NO CRACKS AT GOUGE BLENDOUT. CUT OUT EXISITING DAMAGED & EXISITING FASTERNERS READY TO BE NDT & SRM 53-00-01-2R-7 ACP HFEC (6) 51-00-01 PROCEDURE NR 2  NO CRACKS AT CUTOUT AND DOUBLER AREA. ACCOMP HFEC  OPEN HOLE (6)51-00-02 PROCEDURE NR 2 ON EXISTING FASTNER HOLES. NO CRACKS.  ACP DVI ON INTERNAL AND EXTERNAL STRUCTURE NO DAMAGE. PILOT DRILLED & SHAPED DOUBLER IAW SRM 53-00-01-2R-7.  MANUFACTURED REPAIR DOUBLER, DRILLED REPAIR FASTENER HOLES TO 0.250 INCH,  TRIM REPAIR DOUBLER AND MADE FILLER IAW SRM 53-00-01-2R-7.  INSTALLED COUNTERSINK REPAIR WASHERS IAW SRM 53-00-01-2R-7, CHAMFERED DOUBLER, FINAL SIZE EXISTING FASTENERS TO -7 OR .2187. COUNTERSUNK ONLY .25 HOLES. STILL NEED TO COUNTERSINK REMAINING HOLES. REF. SRM 53-00-01-2R-7. FINISHED COUNTERS IN VERIFIED WORK COMPLETED , IAW SRM 53-00-01-2R-7 AND ALSO VERIFIED SDR COMPLETED

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