AD 63-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Model 188 Series Aircraft |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Model 188 Series Aircraft |
Unsafe Condition
Fouling of the deboost control systems due to sharp edges and projections in the area of the 'off' branch cables.
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Required Actions
Install deflectors on the rudder and elevator spring cartridges, chamfer corners of the aileron and elevator spring cartridges to eliminate sharp edges, and invert the screw and nut attaching the left-hand fuel dump chute locking cable conduit tube for aircraft with Service Bulletin 88/SB-547.
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Compliance Time
within 650 hours' time in service after the effective date of this AD
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Affected Aircraft
Lockheed Model 188A and 188C aircraft, all serial numbers, incorporating the deboost control system and/or Service Bulletin 88/SB-547.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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