AD 88-19-04

final rule
Data completeness: 70%

Airworthiness Directives; BOEING Model 737 Series Airplanes

AD Number
88-19-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company 737-100 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-200 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-200C Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-300 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-400 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-500 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-600 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-700 Series Airworthiness Directives; BOEING Model 737 Series Airplanes
aircraft The Boeing Company 737-800 Series Airworthiness Directives; BOEING Model 737 Series Airplanes

Unsafe Condition

Freezing of cabin pressure safety relief valves could cause fuselage pressures in excess of design limits if pressurization malfunctions occur.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace the cabin pressure safety relief valves (2) in accordance with Boeing Service Bulletin 737-21-1096. An alternate means of compliance or adjustment may be used if approved by the FAA Manager, Seattle Transport Airplane Office.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 15 months after the effective date of this AD, unless previously accomplished

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Boeing Model 737 series airplanes approved for operation above 35,000 feet, certificated in any category

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for The Boeing Company 737-100 Series

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2008-10-09 R1

final rule

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Effective: Jan 15, 2010 Category: aircraft

2004-03-34 R1

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Airworthiness Directives; Boeing Model 737-100, -200, -200C, - 300, -400, and -500 Series Airplanes

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