AD 88-01-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737-300 Series Airplanes |
Unsafe Condition
Loss of the primary Electronic Flight Instrument System (EFIS) displays due to potential failure of the symbol generators.
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Required Actions
Replace the EFIS symbol generators in accordance with Boeing Service Bulletin 737-34-1220 dated April 30, 1987, or later FAA-approved revisions. An alternate means of compliance or adjustment of the compliance time may be used with FAA concurrence.
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Compliance Time
within one year after the effective date of this AD
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Affected Aircraft
BOEING Model 737-300 series airplanes listed in Boeing Service Bulletin 737-34-1220 dated April 30, 1987
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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