Significant Regulatory Activity

Air Safety Week,  August 29, 2005  

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Action & Date Posted on Federal Register

Aug. 22

NPRM

FR Doc 05-16535

Docket No. FAA-2005-22146

Structural safety

Summary of Situation

Bombardier DHC-7 airplanes.

Requires implementation of a corrosion control program, based on the age of this fleet, to prevent structural failure due to corrosion.

Action Date & Comments

Comments due Sept. 21.

Based on company initiative and Canadian regulatory authority action.

Cost estimated at $3,100 per inspection cycle.

Affects 26 airplanes in U.S. registry.

Action & Date Posted on Federal Register

Aug. 22

NPRM

FR Doc 05-16534

Docket No. FAA-2005-22148

Structural safety

Summary of Situation

Airbus A300-600, A300 B2 and B4, and A310.

Supersedes existing AD by requiring expanded inspections to detect and correct corrosion at the lower rim area of the fuselage rear pressure bulkhead.

Action Date & Comments

Comments due Sept. 21.

Includes x-ray and eddy current inspections for some models.

Considered interim action.

Cost of inspections estimated at $650 per airplane.

Action affects 190 airplanes in U.S. registry.

Action & Date Posted on Federal Register

Aug. 22

Final special conditions, request for comments

FR Doc 05-16518

Docket No. NM324

Special Conditions No. 25-293-SC

Flight instruments safety

Summary of Situation

Special conditions issued for McDonnell Douglas MD-10-10F and MD-10-30F freighters modified and flown by Federal Express Corp.

The airplanes will feature an advanced enhanced flight visibility system (EFVS) consisting of a head-up display (HUD) and forward-looking infrared (FLIR) imagery, a unique design feature not envisioned in the original certification standards.

Action Date & Comments

Effective date of special conditions Aug. 9; comments due Sept. 21.

The FLIR can enhance the pilot's awareness of terrain and airport features but at the same time illuminates most of the HUD display area, and the pilot must be able to see through it. The EFVS image on the HUD must not impair the pilot's awareness of essential flight information. A number of performance criteria in this vein are spelled out.

Action & Date Posted on Federal Register

Aug. 22

Final rule

FR Doc 05-16268

Docket no. FAA-2005-20662

AD 2005-17-04

Fire protection

Summary of Situation

McDonnell Douglas DC-10 and MD-10 and MD-11 airplanes.

Requires inspection of number 2 engine fire extinguishing discharge pipes, and corrective action, to prevent water accumulation and consequent freezing damage, which could lead to failure of the fire extinguishing system in the event of a fire.

Action Date & Comments

AD effective Sept. 26.

Based on reports of freezing damage and one report of ENG FIRE AGENT LO.

Cost of inspection $64 per airplane. Cost of replacement parts varies from $7,500 to $9,100, depending on model.

Affects 530 airplanes in worldwide fleet, of which 453 are in U.S. registry.

Action & Date Posted on Federal Register

Aug. 22

Final rule