AD 91-14-23
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; BOEING Model 747-400 Series Airplanes |
Unsafe Condition
Smoke and fire in the Door 5 Crew Rest Station due to electrical power provided by circuit breakers C8823 and C8824 to the crew rest bunk reading lights (Grimes Part Number 15-0175-9).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Disconnect, cap, and stow wires connected to circuit breakers C8823 and C8824 at the P84 panel. Collar the circuit breakers in the open position and label them INOPERATIVE. Alternative methods or compliance time adjustments may be approved by the FAA Manager, Seattle ACO.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 60 days after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Boeing Model 747-400 series airplanes delivered with Door 5 Crew Rest Stations, certificated in any category
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Circuit Breakers
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-14-23.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-14-23 Document Type: AD Final Rules Docket Number: 91-NM-60-AD Subject Heading: Airworthiness Directives; BOEING Model 747-400 Series Airplanes Subject: Circuit Breakers Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/09/1991 Make: The Boeing Company Model: 747-400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 91-14-23 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-60-AD AMENDMENT: 39-7063 AD NUMBER: 91-14-23 SUBJECT HEADING: Airworthiness Directives; BOEING Model 747-400 Series Airplanes ACTION: SUMMARY: DATES: Effective August 9, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-14-23 BOEING: Amendment 39-7063. Docket No. 91-NM-60-AD. Applicability: Model 747-400 series airplanes delivered with Door 5 Crew Rest Stations, certificated in any category. Compliance: Required within 60 days after the effective date of this AD, unless previously accomplished. To prevent the occurrence of smoke and fire in the Door 5 Crew Rest Station, accomplish the following: A. Disconnect, cap, and stow the wires connected to circuit breakers C8823 and C8824 at the P84 circuit breaker panel, which provides electrical power to the crew rest bunk reading lights, Grimes Part Number 15-0175-9. Circuit breakers C8823 and C8824 must be collared in the open position and labeled INOPERATIVE. B. An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO. 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. This amendment (39-7063, AD 91-14-23) becomes effective on August 9, 1991. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_91-14-23.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-14-23 Document Type: AD Final Rules Docket Number: 91-NM-60-AD Subject Heading: Airworthiness Directives; BOEING Model 747-400 Series Airplanes Subject: Circuit Breakers Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/09/1991 Make: The Boeing Company Model: 747-400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 91-14-23 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-60-AD AMENDMENT: 39-7063 AD NUMBER: 91-14-23 SUBJECT HEADING: Airworthiness Directives; BOEING Model 747-400 Series Airplanes ACTION: SUMMARY: DATES: Effective August 9, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-14-23 BOEING: Amendment 39-7063. Docket No. 91-NM-60-AD. Applicability: Model 747-400 series airplanes delivered with Door 5 Crew Rest Stations, certificated in any category. Compliance: Required within 60 days after the effective date of this AD, unless previously accomplished. To prevent the occurrence of smoke and fire in the Door 5 Crew Rest Station, accomplish the following: A. Disconnect, cap, and stow the wires connected to circuit breakers C8823 and C8824 at the P84 circuit breaker panel, which provides electrical power to the crew rest bunk reading lights, Grimes Part Number 15-0175-9. Circuit breakers C8823 and C8824 must be collared in the open position and labeled INOPERATIVE. B. An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO. 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. This amendment (39-7063, AD 91-14-23) becomes effective on August 9, 1991. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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