# SDR CA010509005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2001
- Submitted: May 11, 2001
- Operation: General aviation
- Make and model: Dhav DHC7103
- Aircraft time: 32,198 hours
- Engine: Pwa PT6A50
- Propeller: Hamstd 24PF305
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Cap
- Part number: 75710099
- Condition: Chafed
- Location: Lt & Rt Wing
- Part time: 32,198 hours, 30,818 cycles
- Component: Wing, Dhav
- 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/CA010509005

## Discrepancy

(CAN) WE HAVE FOUND CHAFING AT YW279 LT & RT ON THE WING REAR SPAR CAP, BEHIND THE NR 1 AND NR 4 NACELLES. THIS CHAFING IS CAUSED BY A WIRE BUNDLE IN BOTH LOCATIONS. WE HAVE SEEN THIS DAMAGE IN THREE EARLIER MAINTENANCE PROJECTS, ON THE FOLLOWING AIRCRAFT:(1) DHC-7 S/N 036 (GJPI) TSN: 24486.6 CSN: 43093(2) DHC-7 S/N 037 (GFOF) TSN: 30142.1 CSN: 42908(3) DHC-7 S/N  63 (GCEV) TSN: 33390.4 CSN: 32682IN ALL CASES, THE DAMAGE WAS ADDRESSED WITH A REPAIR SCHEME PROVIDED BY DEHAVILLAND.

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