NTSB Safety Recommendations

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Publication date: 25 January 2008



(2008), "NTSB Safety Recommendations", Aircraft Engineering and Aerospace Technology, Vol. 80 No. 1. https://doi.org/10.1108/aeat.2008.12780aab.016

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited

NTSB Safety Recommendations

NTSB Safety Recommendations

A-07-39 and -40

The NTSB recommends that the Federal Aviation Administration: verify that the maintenance programs of commercial aircraft operators include stringent criteria to address recurring or systemic discrepancies, including, if necessary, further analysis of the discrepancies through a comprehensive engineering evaluation (A-07-39).

Identify the systemic deficiencies in the maintenance program oversight procedures that led to this accident and modify those procedures to ensure that the maintenance program plans for commercial operators are adequate to ensure the continued airworthiness, both structural and otherwise, of the operator's fleet (A-07-40).

Safety Recommendations A-07-44 through -48

Require that all 14 CFR Part 91K, 121, and 135 operators establish procedures requiring all crewmembers on the flight deck to positively confirm and cross- check the aeroplane's location at the assigned departure runway before crossing the hold short line for takeoff. This required guidance should be consistent with the guidance in Advisory Circular 120-74A and Safety Alert for Operators 06013 and 07003 (A-07-44).

Require that all 14 CFR Part 91K, 121, and 135 operators install on their aircraft cockpit moving map displays or an automatic system that alerts pilots when a takeoff is attempted on a taxiway or a runway other than the one intended (A-07-45).

Require that all airports certificated under 14 CFR Part 139 implement enhanced taxiway centreline markings and surface painted holding position signs at all runway entrances (A-07-46).

Prohibit the issuance of a takeoff clearance during an aeroplane's taxi to its departure runway until after the airline has crossed all intersecting runways (A-07-47).

Revise Federal Aviation Administration Order 7110.65, “Air Traffic Control,” to indicate that controllers should refrain from performing administrative tasks, such as the traffic count, when moving aircraft are in the controller's area of responsibility (A-07-48).

The Safety Board reiterates the following previously issued recommendations to the Federal Aviation Administration: amend 14 CFR Section 91.129(i) to require that all runway crossings be authorised only by specific air traffic control clearance, and ensure that US pilots, US personnel assigned to move aircraft, and pilots operating under 14 CFR Part 129 receive adequate notification of the change (A-00-67).

Amend Federal Aviation Administration Order 7110.65, “Air Traffic Control,” to require that, when aircraft need to cross multiple runways, air traffic controllers issue an explicit crossing instruction for each runway after the previous runway has been crossed (A-00-68).

NTSB Safety Recommendations A-07-49 and -50

The NTSB recommends that the Federal Aviation Administration: complete the process begun in 2004 to approve the service bulletin for the installation of the redesigned windshield heat terminal block on Boeing 767 aeroplanes (A-07-49).

Issue airworthiness directives to replace the windshield heat terminal block on all Boeing 747, 757, 767, and 777 aeroplanes in accordance with the Boeing service bulletins (A-07-50).

NTSB Safety Recommendation A-07-51

The NTSB recommends that the Federal Aviation Administration: seek authority from Congress to require the installation of Technical Standard Order C126 [406 megahertz (MHz)] emergency locator transmitters (ELTs) in all applicable aircraft at the earliest possible opportunity. Further, the Federal Aviation Administration should strongly consider establishing a compliance date for upgrading to 406-MHz ELTs on or before the date that COSPAS-SARSAT will cease satellite processing of 121.5MHz signals (A-07-51).

NTSB Safety Recommendations A-07-52 through -54

The NTSB recommends that the Federal Aviation Administration: require Cessna to modify the Citation 525 to incorporate an aural trim-in- motion warning and the addition of contrasting colour bands on the pitch trim wheel to provide the pilot with more timely recognition of a trim runaway condition before control forces become unmanageable (A-07-52).

Require Cessna to perform analysis and conduct a test to demonstrate that the maximum control forces in a Cessna Citation 525 meet the certification requirements of 14 Code of Federal Regulations Part 23 during a pitch trim runaway condition. The analysis and test should comply with the pilot- recognition time requirements provided in Advisory Circular 23-8, “Flight Test Guide for Certification of Part 23 Aeroplanes.” If, after accomplishing the analysis and test, Cessna is unable to demonstrate that the Citation 525 meets the certification requirements, require Cessna to take corrective action so that the aeroplane does meet certification requirements (A-07-53).

Require Cessna to replace the pitch trim circuit breaker on the Citation 525 with a collared circuit breaker to aid the pilot in quickly identifying it if necessary (A-07-54).

NTSB Safety Recommendations A-07-55 and -56

The NTSB recommends that the Federal Aviation Administration: require, on all new aeroplanes certificated under 14 CFR Part 25, that the air data sensor heating system automatically activate after engine start (A-07-55).

Require modification of existing aeroplanes certificated under 14 CFR Part 25 that currently require manual activation of the air data sensor heating system to incorporate, to the extent technically practical, the automatic activation of this system; for aeroplanes that cannot be modified, require that cockpit warnings provide an upgraded warning associated with the failure to activate the heating system (A-07-56).