AD 2001-06-05

This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATA - Groupe AEROSPATIALE (Socata) Model TBM 700 airplanes equipped with Option No. OPT 70-35-001 (gaseous oxygen system). This AD requires you to incorporate a modification that relocates the oil breather vent location. 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 oil from entering the gaseous oxygen system service compartment. Such oil contamination could result in a fire or explosion.

Final rule.

2001-06-05 SOCATA - GROUPE AEROSPATIALE: Amendment 39-12152; Docket No. 2000-CE- 70-AD.

(a) What airplanes are affected by this AD? This AD affects Model TBM 700 airplanes, serial numbers 157, 158, 163, 167, and 168, that are:
(1) equipped with Option No. OPT 70-35-001 (gaseous oxygen system); and
(2) certificated in any category.

(b) Who must comply with this AD? Anyone who wishes to operate any of the above airplanes must comply with this AD.

(c) What problem does this AD address? The actions specified by this AD are intended to prevent oil from entering the gaseous oxygen system service compartment. Such oil contamination could result in a fire or explosion.

(d) What actions must I accomplish to address this problem? To address this problem, you must accomplish the following:

Actions
Compliance
Procedures
(1) Relocate the oil breather vent location by incorporating Technical Instruction No. OPT70 K076-71 (Modification No. MOD70-119-71"OIL PUMP BREATHER").
Within the next 100 hours time-in-service (TIS) after May 11, 2001 (the effective date of this AD).
In accordance with Socata Service Bulletin No. SB 70-085 71, dated October 2000.

(2) Do not incorporate, on any affected airplane, Option No. OPT 70-35-001 (gaseous oxygen system) without simultaneously incorporating the modification required by paragraph (d)(1) of this AD.
As of May 11, 2001 (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 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 Manager, Small Airplane Directorate.

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.

(h) Are any service bulletins incorporated into this AD by reference? Actions required by this AD must be done in accordance with Socata Service Bulletin No. SB 70-085 71, dated October 2000. The Director of the Federal Register approved this incorporation by reference under 5 U.S.C. 552(a) and 1 CFR part 51. You can get copies from SOCATA Groupe AEROSPATIALE, Customer Support, Aerodrome Tarbes-Ossun-Lourdes, BP 930 - F65009 Tarbes Cedex, France; or the Product Support Manager, SOCATA - Groupe AEROSPATIALE, North Perry Airport, 7501 Pembroke Road, Pembroke Pines, Florida 33023. You can look at 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.

(i) When does this amendment become effective? This amendment becomes effective on May 11, 2001.

Note 2: The subject of this AD is addressed in French AD 2000-439(A), dated November 15, 2000.

Discussion
What events have caused this proposed AD? The Direction G n rale de l'Aviation Civile (DGAC), which is the airworthiness authority for France, recently notified FAA that an unsafe condition may exist on certain Socata Model TBM 700 airplanes equipped with Option No. OPT 70-35-001 (gaseous oxygen system). The DGAC communicates a report of oil entering the gaseous oxygen system service compartment on a Model TBM 700 airplane. In particular, oil was seeping out of the engine oil pump breather.

What are the consequences if the condition is not corrected? Such oil contamination could result in a fire or explosion.

Has FAA taken any action to this point? We issued a proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an AD that would apply to certain Socata Model TBM 700 airplanes equipped with Option No. OPT 70-35-001(gaseous oxygen system). This proposal was published in the Federal Register as anotice of proposed rulemaking (NPRM) on January 8, 2001 (66 FR 1271). The NPRM proposed to require you to relocate the oil breather vent location by incorporating Technical Instruction No. OPT70 K076-71 (Modification No. MOD70-119-71) "OIL PUMP BREATHER".

Was the public invited to comment? Interested persons were afforded an opportunity to participate in the making of this amendment. No comments were received on the proposed rule or the FAA's determination of the cost to the public.

FAA's Determination
What is FAA's final determination on this issue? After careful review of all available information related to the subject presented above, we have determined that air safety and the public interest require the adoption of the rule as proposed except for minor editorial corrections. We determined that these minor corrections:
- will not change the meaning of the AD; and
- will not add any additional burden upon the public than was already proposed.

Cost ImpactHow many airplanes does this AD impact? We estimate that 5 Model TBM 700 airplanes are on the U.S. Registry that could have a gaseous oxygen system and could be affected by this AD.

What is the cost impact of this AD on owners/operators of the affected airplanes? We estimate the following costs to accomplish the modification:

Labor Cost
Parts Cost
Total Cost Per Airplane
Total Cost on U.S. Operators
4 workhours X $60 = $240.
Socata will provide parts free of charge.
$240.
$240 X 5 = $1,200.

Regulatory Impact
Does this AD impact various entities? The regulations adopted herein will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. Therefore, it is determined that this final rule does not have federalism implications under Executive Order 13132.

Does this AD involve a significant rule or regulatory action? For the reasons discussed above, I certify that this action (1) is not a "significant regulatory action" under Executive Order 12866; (2) is not a "significant rule" under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. A copy of the final evaluation prepared for this action is contained in the Rules Docket. A copy of it may be obtained by contacting the Rules Docket at the location provided under the caption "ADDRESSES".

List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: PART 39 - AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701. 39.13 [Amended]
2. FAA amends 39.13 by adding a new AD to read as follows: