# AD 59-17-04: Wing Spar Attaching Bolts

- Type: Airworthiness directive
- Status: Current
- Products: Revo Colonial C-1 and Colonial C-2
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E25876442EA3D56A86256A4C00452B9C.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/59-17-04

## The airworthiness directive

59-17-04 COLONIAL: Applies to All Models C-1 and C-2 Aircraft.

Compliance required within the next 10 hours but not later than October 15, 1959, and at each 100 hours thereafter.

Due to failures in service, remove, inspect, and replace, if damaged, the two AN 4 bolts attaching the wing rear spar to the hull on each side at hull Station 138. The bolts are located adjacent to the inboard flap hinge and are accessible through the wheel wells. Remove only one bolt per side at a time and replace before removing the other bolt. The torque applied to these bolts shall not exceed 70 inch-pounds.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A13](https://openairdocs.org/tcds/1A13): Revo Incorporated; names 2 of 7 models: Colonial C-1, Colonial C-2

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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