# SDR UPS96806063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N840UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46140
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Doubler
- Condition: Corrosion
- Location: Fs 155
- 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/UPS96806063

## Discrepancy

WHILE IN FOR C-CHECK, MAINTENANCE REPORTED AFT ADF ANTENNA INNER AND OUTER DOUBLERS HAVE HEAVY CORROSION AT FS 155 LONGERONS 35L AND 36L.  REPLACED BOTH DOUBLERS PER SRM 51-1-21.

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