# AD 90-05-08: Revise Inspection Program

- Type: Airworthiness directive
- Status: Current
- Products: Day, Gene C. R4D-8, R4D-8, R4D-8Z, Super DC-3, DC3-G102, DC3-G102A, DC3-G103A, DC3-G202A, DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G, DC3A-SC3G and 6 more
- Effective: April 19, 1990
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-6503
- Docket: 88-NM-84-AD
- Registered aircraft: 64 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/872B31B6F3B6459086256A08006459C0.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/90-05-08

## The airworthiness directive

90-05-08 MCDONNELL DOUGLAS: Amendment 39-6503. Docket No. 88-NM-84-AD.

Applicability: McDonnell Douglas Model DC-3, DC-3A, DC-3B, DC-3C, DC-3D, Super DC-3S, DST, and (Military) C-41, C-47, C-48, C-49, C-50, C-51, C-52, C-53, C-68, C-84, C-117, R4D series airplanes, including those modified for turbo-propeller power, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To ensure the continuing structural integrity of these airplanes, accomplish the following:

A. Within one year after the effective date of this AD, incorporate a revision into the FAA-approved maintenance inspection program which provides for inspection of the Principal Structural Elements (PSE) defined in Chapter I, Section 6, and Chapter III of McDonnell Douglas Corporation, Report No. L26-013, "DC-3 Supplemental Inspection Document (SID)," Revision 1, dated January 1990. The non-destructive inspection techniques set forth in the SID provide acceptable methods of accomplishing the inspections required by this AD. All inspection results (negative or positive) must be reported to McDonnell Douglas Corporation, in accordance with the instructions of the SID.

B. Cracked structure detected during the inspection required by paragraph A., above, must be repaired or replaced, prior to further flight, in accordance with instructions in the SID.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

D. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment and then send it to the Manager, Los Angeles AircraftCertification Office.

The requirements of this rule shall be done in accordance with McDonnell Douglas Corporation Report No. L26-013, "DC-3 Supplemental Inspection Document (SID)," Revision 1, dated January 1990. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552 (a) and 1 CFR Part 51. Copies may be obtained from McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846. Copies may be inspected at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington; at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 1100 L Street, N.W., Room 8301, Washington, D.C.

This amendment (39-6503, AD 90-05-08) becomes effective on April 19, 1990.

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-669](https://openairdocs.org/tcds/A-669): The Boeing Company; names 10 of 10 models: DC3C-S4C4G, DC3C-R-1830-90C, DC3A-S1C3G, DC3C-SC3G, DC3C-S1C3G, DC3A-SCG, DC3A-SC3G, DC3A-S1CG…
- [TCDS A-618](https://openairdocs.org/tcds/A-618): The Boeing Company; names 4 of 4 models: DC3-G202A, DC3-G102A, DC3-G103A, DC3-G102
- [TCDS 6A2](https://openairdocs.org/tcds/6A2): The Boeing Company; names 2 of 3 models: R4D-8Z, Super DC-3

## 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: 64 (64 by airframe model, 0 by engine model)
- Makers: Douglas 64

Models with the most aircraft:

- [Douglas DC3C-S1C3G](https://openairdocs.org/model/douglas-dc3c-s1c3g): 30 aircraft (airframe model)
- [Douglas DC3C-R-1830-90C](https://openairdocs.org/model/douglas-dc3c-r-1830-90c): 10 aircraft (airframe model)
- [Douglas DC3-G202A](https://openairdocs.org/model/douglas-dc3-g202a): 7 aircraft (airframe model)
- [Douglas DC-3A-S1C3G](https://openairdocs.org/model/douglas-dc-3a-s1c3g): 5 aircraft (airframe model)
- [Douglas DC3C-S4C4G](https://openairdocs.org/model/douglas-dc3c-s4c4g): 5 aircraft (airframe model)
- [Douglas DC3A-S4C4G](https://openairdocs.org/model/douglas-dc3a-s4c4g): 2 aircraft (airframe model)
- [Douglas R4D-8](https://openairdocs.org/model/douglas-r4d-8): 2 aircraft (airframe model)
- [Douglas DC3-G102A](https://openairdocs.org/model/douglas-dc3-g102a): 1 aircraft (airframe model)
- [Douglas DC3C-SC3G](https://openairdocs.org/model/douglas-dc3c-sc3g): 1 aircraft (airframe model)
- [Douglas SUPER DC-3](https://openairdocs.org/model/douglas-super-dc-3): 1 aircraft (airframe model)

All 10 models: https://openairdocs.org/ad/90-05-08/models.md
Every aircraft: https://openairdocs.org/ad/90-05-08/aircraft.md

Its text cites no advisory circulars or STCs.

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