# AD 77-15-03: Elevator Torque Tube Quadrant

- Type: Airworthiness directive
- Status: Current
- Products: Bombardier CL-215-1A10
- Effective: July 27, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2976
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D54B8585E5347A7D862569A70065E91F.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-15-03

## The airworthiness directive

77-15-03 CANADAIR: Amendment 39-2976. Applies to Canadair CL-215-1A10 airplanes, Serial Number 1001 thru 1040, and 1046, certificated in all categories.

Compliance is required prior to U.S. Airworthiness Certification.

To ensure correct engagement of shoulders of input quadrant P/N 215-90252 in left and right outboard bearing assemblies P/N 215-90255 or 215-90291, accomplish the following:

On both ends of the elevator torque tube, measure the dimensions between the face of the shoulder of the input quadrant and the face of the bearing inner race. The two dimensions are to be added and their total compared to the following:

  (a) Aircraft 1001 thru 1015 and 1021 thru 1030, using bearing P/N 215-90255:

If greater than 0.200 inches, alter assembly in accordance with the Modification and Procedure paragraph of

Canadair Service Bulletin CL-215-201, dated 1/13/76, or approved equivalent alteration.

  (b) Aircraft 1016 thru 1020 and 1031 thru 1040, and 1046, using bearing P/N 215- 90291:

If greater than 0.100 inches, alter assembly in accordance with the Modification and Procedure paragraph of

Canadair Service Bulletin CL-215-201, dated 1/13/76, or approved equivalent alteration.

Equivalent alterations must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

Canadair Service Information Circular 115-CL-215 pertains to this subject.

This amendment is effective July 27, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A14EA](https://openairdocs.org/tcds/A14EA): De Havilland Aircraft of Canada Limited; names 1 of 3 models: CL-215-1A10

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 2 (2 by airframe model, 0 by engine model)
- Makers: Canadair 2

Models with the most aircraft:

- [Canadair CL215 1A10](https://openairdocs.org/model/canadair-cl215-1a10): 2 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/77-15-03/models.md
Every aircraft: https://openairdocs.org/ad/77-15-03/aircraft.md

Its text cites no advisory circulars or STCs.

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