59-17-04: Wing Spar Attaching Bolts
FAA order 59-17-04 is an airworthiness directive. The FAA's subject line: Wing Spar Attaching Bolts. System: airframe structure.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Revo, Incorporated
- Models
- Colonial C-1, Colonial C-2
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (602 characters)
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.
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/59-17-04.json · aircraft systems.