# AD 77-13-05: Missing Rivets In Bulkhead

- Type: Airworthiness directive
- Status: Current
- Products: Bombardier CL-215-1A10, CL-215-6B11 (CL-215T Variant) and CL-215-6B11 (CL-415 Variant)
- Effective: June 29, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2930
- Registered aircraft: 12 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1057916A291B0B60862569A70065AAB8.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-13-05

## The airworthiness directive

77-13-05 CANADAIR: Amendment 39-2930. Applies to CL-215 Airplanes, Serial Numbers 1001 through 1040 and 1046, certificated in all categories.

Compliance required prior to U.S. airworthiness certification, unless already accomplished:

  (a) Inspect the right hand canopy sill for missing rivets forward and aft of bulkhead 234.5 as indicated in Figures 1 and 3 of the Canadair Information Circular (S.I.C.) No. 129-CL- 215 dated May 12, 1976, or an approved equivalent inspection.

  (b) If rivets have been omitted forward of the bulkhead, between stations 223 and 229, install three NAS 1103-4 bolts with MS2104L3 Nuts and Strip Washer as shown in Figure 2 of the S.I.C. or an approved equivalent alteration.

  (c) If rivet spacing aft of the bulkhead is greater than 1.25 inch install intermediate rivets as indicated in Figure 3 of the S.I.C. or an approved equivalent alteration.

  (d) Equivalent inspections, alterations or parts must be approved by Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

This Amendment becomes effective June 29, 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 2 of 3 models: CL-215-1A10, CL-215-6B11 (CL-215T Variant)

## 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: 12 (12 by airframe model, 0 by engine model)
- Makers: Canadair 8, Bombardier 4

Models with the most aircraft:

- [Canadair CL-215-6B11(CL-215T)](https://openairdocs.org/model/canadair-cl-215-6b11-cl-215t): 6 aircraft (airframe model)
- [Bombardier CL-215-6B11 (CL-415)](https://openairdocs.org/model/bombardier-cl-215-6b11-cl-415): 4 aircraft (airframe model)
- [Canadair CL215 1A10](https://openairdocs.org/model/canadair-cl215-1a10): 2 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/77-13-05/models.md
Every aircraft: https://openairdocs.org/ad/77-13-05/aircraft.md

Its text cites no advisory circulars or STCs.

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