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2002-20-04: Exhaust system

FAA order 2002-20-04 is an airworthiness directive in force since November 18, 2002. The FAA's subject line: Exhaust system. It names Daher (Socata) TB21: about 57 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
SOCATA
Models
TB 21
On this site
Daher (Socata) TB21 57 registered

Dates and paperwork

In force since
November 18, 2002
Published
October 3, 2002 (signed September 20, 2002)
Docket
2002-CE-16-AD
Status
Current
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA--Groupe AEROSPATIALE (Socata) Model TB 21 airplanes. This AD requires you to modify the exhaust system. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for France. The actions specified by this AD are intended to prevent high levels of carbon monoxide from entering the cockpit during certain flight configurations, which could result in the pilot becoming incapacitated or impairing his/her judgement. Such a condition could lead to the pilot not being able to make critical flight safety decisions and result in loss of control of the airplane.

The order itself the regulatory text, as published

Show the full text (4,753 characters)
2002-20-04 SOCATA--Groupe AEROSPATIALE: Amendment 39-12899; Docket No. 2002-CE-16-AD. (a) What airplanes are affected by this AD? This AD affects Model TB 21 airplanes, serial numbers 500 through 2080, 2091, and 2101, that are certificated in any category. (b) Who must comply with this AD? Anyone who wishes to operate any of the airplanes identified in paragraph (a) of this AD must comply with this AD. (c) What problem does this AD address? The actions specified by this AD are intended to prevent high levels of carbon monoxide from entering the cockpit during certain flight configurations, which could result in the pilot becoming incapacitated or impairing his/ her judgement. Such a condition could lead to the pilot not being able to make critical flight safety decisions and result in loss of control of the airplane. (d) What actions must I accomplish to address this problem? To address this problem, you must accomplish the following: Actions Compliance Procedures (1) Install a part number (P/N) TB 21 9600200000 exhaust extension to the exhaust pipe. This installation is Modification No. MOD.178. Within the next 50 hours time-in-service (TIS) after November 18, 2002 (the effective date of this AD). In accordance with Socata TB Aircraft Mandatory Service Bulletin SB 10-126 78, dated November 2001, and the applicable maintenance manual. (2) Do not install, on any affected airplane, any of the following components without incorporating Modification No. MOD.178 as required by paragraph (d)(1) of this AD:. (i) Exhaust installation assemblies P/N TB21 56001000, P/N TB21 56001005, or P/N TB21 5600100501; or (ii) Turbo exhaust tubes P/N TB21 56001001, P/N TB21 56001006, or P/N TB21 5600100601. As of November 18, 2002 (the effective date of this AD). Not applicable. (e) Can I comply with this AD in any other way? You may use an alternative method of compliance or adjust the compliance time if: (1) Your alternative method of compliance provides an equivalent level of safety; and (2) The Standards Office Manager, Small Airplane Directorate, approves your alternative. Submit your request through an FAA Principal Maintenance Inspector, who may add comments and then send it to the Standards Office Manager. Note 1: This AD applies to each airplane identified in paragraph (a) of this AD, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/ operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if you have not eliminated the unsafe condition, specific actions you propose to address it. (f) Where can I get information about any already-approved alternative methods of compliance? Contact Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4146; facsimile: (816) 329-4090. (g) What if I need to fly the airplane to another location to comply with this AD? The FAA can issue a special flight permit under sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate your airplane to a location where you can accomplish the requirements of this AD. No passengers are allowed for this flight. (h) Are any service bulletins incorporated into this AD by reference? Actions required by this AD must be done in accordance with Socata TB Aircraft Mandatory Service Bulletin SB 10-126 78, dated November 2001. The Director of the Federal Register approved this incorporation by reference under 5 U.S.C. 552(a) and 1 CFR part 51. You may get copies from SOCATA Groupe AEROSPATIALE, Customer Support, Aerodrome Tarbes-Ossun-Lourdes, BP 930--F65009 Tarbes Cedex, France; telephone: 011 33 5 62 41 73 00; facsimile: 011 33 5 62 41 76 54; or the Product Support Manager, SOCATA Groupe AEROSPATIALE, North Perry Airport, 7501 Pembroke Road, Pembroke Pines, Florida 33023; telephone: (954) 893-1400; facsimile: (954) 964-4141. You may view copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. Note 2: The subject of this AD is addressed in French AD 2001- 610(A), dated December 12, 2001. (i) When does this amendment become effective? This amendment becomes effective on November 18, 2002.

Related safety bulletins advice on the same designs, not orders

2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2006-08-14CE-06-63 ·
2003-11-06CE-04-14 ·
2003-10-22CE-04-07 ·
2003-10-22CE-04-08 ·

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2002-20-04.json · aircraft systems.