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2010-09-24
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Airworthiness Directives; Fokker Model F28 Mark 0100 and 0070 Series Airplanes
Proposed Rules
D09002ee1be026772
D09002ee1be0267cf
United States
Department of Transportation
originator
org
United States Government Agency or Subagency
United States
Federal Aviation Administration
originator
org
United States Government Agency or Subagency
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all Fokker Model F28 Mark 0100 and 0070 series airplanes, that currently requires revising the Airplane Flight Manual (AFM) to include information that will enable the flightcrew to identify failures of the emergency direct current (DC)/alternating current (AC) bus power supply and to take appropriate corrective actions. That AD was prompted by one report indicating that a diode failed, which resulted in battery drain and loss of the emergency DC bus power supply; and another report indicating that the circuit breaker of the transformer rectifier unit No. 3 tripped, which resulted in the loss of the emergency DC/AC bus power supply. This action would require a new terminating modification for the existing AFM revisions. This action would also require a new AFM revision to inform the flightcrew that, under certain conditions, an ``EMER DC BUS'' warning on the multi-function display unit (MFDU) will occur, and to take appropriate corrective actions. The actions specified by the proposed AD are intended to prevent failures of the emergency DC/AC bus power supply, which could reduce the ability of the flightcrew to control the airplane.
62 FR 2324
https://www.govinfo.gov/app/details/FR-1997-01-16/97-1029
97-1029
fr16ja97-11
RIN 2120-AA64
4910-13-U
Docket No. 96-NM-269-AD
https://www.govinfo.gov/app/details/FR-1997-01-16/97-1029
https://www.govinfo.gov/content/pkg/FR-1997-01-16/html/97-1029.htm
https://www.govinfo.gov/content/pkg/FR-1997-01-16/pdf/97-1029.pdf
4 p.
2324
2327
62 FR 2324
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Regulation Identification Number 2120-AA64
RIN 2120-AA64
Airworthiness Directives; Fokker Model F28 Mark 0100 and 0070 Series Airplanes; Federal Register Vol. 62, Issue
PRORULE
97-1029
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
1997-02-25
Docket No. 96-NM-269-AD
4910-13-U
97-1029
Notice of proposed rulemaking (NPRM).
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to all Fokker Model F28 Mark 0100 and 0070 series airplanes, that currently requires revising the Airplane Flight Manual (AFM) to include information that will enable the flightcrew to identify failures of the emergency direct current (DC)/alternating current (AC) bus power supply and to take appropriate corrective actions. That AD was prompted by one report indicating that a diode failed, which resulted in battery drain and loss of the emergency DC bus power supply; and another report indicating that the circuit breaker of the transformer rectifier unit No. 3 tripped, which resulted in the loss of the emergency DC/AC bus power supply. This action would require a new terminating modification for the existing AFM revisions. This action would also require a new AFM revision to inform the flightcrew that, under certain conditions, an ``EMER DC BUS'' warning on the multi-function display unit (MFDU) will occur, and to take appropriate corrective actions. The actions specified by the proposed AD are intended to prevent failures of the emergency DC/AC bus power supply, which could reduce the ability of the flightcrew to control the airplane.
Comments must be received by February 25, 1997.
Tim Dulin, Aerospace Engineer, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (206) 227-2141; fax (206) 227-1149.
Federal Register
Vol. 62, no. 11
Office of the Federal Register, National Archives and Records Administration
1997-01-16
continuing
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291 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-1997-01-16
P0b002ee180a3efc6
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr16ja97
https://www.govinfo.gov/app/details/FR-1997-01-16
https://www.govinfo.gov/content/pkg/FR-1997-01-16/pdf/FR-1997-01-16.pdf
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2010-09-24
2023-05-06
FR-1997-01-16
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FR-1997-01-16
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