# AD 75-18-04: Outer Wing Lower Panels

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin 382, 382B, 382E, 382F and 382G
- Effective: March 20, 1978
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-3156
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5B940D54CD24C4AE86256E0C006FA04A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-18-04

## The airworthiness directive

75-18-04 LOCKHEED: Amendment 39-2343 as amended by Amendment 39-2514 is further amended by Amendment 39-3156. Applies to all Model 382 series airplanes, serial numbers 3946 and 4101 through 4541. On airplane serial numbers 3946 and 4101 through 4298 with 6300 hours or more total time in service, and on airplane serial numbers 4299 through 4541 with 9450 hours or more total time in service on the effective date of Amendment 39-3156, within the next 100 hours in service, unless already accomplished, ultrasonically inspect the outer wing lower panels at OWS 35 in accordance with Hercules Airfreighter Inspection Procedures SMP 515-A Card No. SP-61, revised August 5, 1975. Reinspect at the following intervals:

      (A) Airplane serial numbers 3946 and 4101 through 4298, at intervals not to exceed 3400 hours time in service from the last inspection until 20,000 hours, (without ECP 954) or 24,000 hours, (with ECP 954), at which time the interval is not to exceed 1700 hours from the lastinspection, and

      (B) Airplane serial numbers 4299 through 4541 at intervals not to exceed 6300 hours time in service from the last inspection. If a crack or cracks are found, before further flight, contact the Chief, Engineering and Manufacturing Branch, FAA, Southern Region, P.O. Box 20636, Atlanta, Georgia 30320.

Before the accumulation of more than 30,000 flight hours, preventive modification shall be installed in accordance with Lockheed Service Bulletin 382-57-43, or later FAA-Approved revision, or in an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, FAA, Southern Region.

The inspections required by this AD may be discontinued for those airplanes modified in accordance with the above paragraph.

Amendment 39-2343 was effective August 22, 1975, and was effective August 6, 1975, for all recipients of the telegrams dated August 6, 1975, and August 8, 1975, which contained this amendment.

Amendment 39-2514 became effective February 13, 1976.

This Amendment 39-3156 becomes effective March 20, 1978.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A1SO](https://openairdocs.org/tcds/A1SO): Lockheed Martin Corporation; names 5 of 6 models: 382F, 382, 382E, 382B, 382G

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Lockheed 6

Models with the most aircraft:

- [Lockheed 382G](https://openairdocs.org/model/lockheed-382g): 5 aircraft (airframe model)
- [Lockheed 382 44C (C130K)](https://openairdocs.org/model/lockheed-382-44c-c130k): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/75-18-04/models.md
Every aircraft: https://openairdocs.org/ad/75-18-04/aircraft.md

Its text cites no advisory circulars or STCs.

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