# SDR DALA2018070504360

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2018
- Submitted: July 5, 2018
- Operation: Air carrier
- Aircraft: N920DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53582
- Aircraft time: 48,450 hours, 32,160 cycles
- System (JASC): [5530 · Vertical Stabilizer](https://openairdocs.org/jasc/5530)
- Part: Structure
- Condition: Cracked
- Location: Vertical Stab
- 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/DALA2018070504360

## Discrepancy

WHILE PERFORMING VISUAL INSPECTION PER SRM 55-30-04 P 4, FOUND CRACK TO GO EXCEEDED PAST STOP DRILLS AND TO BE PAST MAX TOLERANCE. PERFORMED FPI INSPECTION OF SUBJECT AREA TO MARK ENDS OF CRACKS PER SRM 55-30-05. COMPLETED PERM REPAIR PER SRM 55-30-05 PAR 5.

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