ON-AIR

Just heard that a Lear 45 made a gear up landing this morning in Cancun MMUN/CUN. ?

Anyone heard any more on this, if its a 45 why was it still flying and is the problem related to the recent AD grounding...

av8boy

I believe that in the US the FAA has recently issued two ADs having to do with the 45. One was for the gear and isn't effective until August 27. The other for the HSAA was effective on August 13 but allowed three days for a ferry flight to get the airplane to a place where the work could be done. Further, I don't believe (but I'm not certain on this one) that all 45s needed the part replaced. The original (April 2003) AD which mandated replacement of the HSAA didn't apply to ALL 45s, and the new AD only applies to those 45s which had their HSAA replaced under the earlier AD (and again, I'm not sure that this is the case).

Did I misunderstand the ADs? Somebody throw me a bone here. Also, where was the A/C registered?

Dave

jet_noseover

2003-16-19 LEARJET: Amendment 39-13272. Docket 2003-NM-142-AD.

APPLICABILITY: All Model 45 airplanes, certificated in any category.

COMPLIANCE: Required as indicated, unless accomplished previously.

To prevent structural failure of the horizontal stabilizer actuator assembly
(HSAA), which could result in possible loss of control of the airplane,
accomplish the following:

REPLACEMENT

(a) Except as provided by paragraph (b) of this AD, before further flight
after the effective date of this AD, replace the HSAA having part
number (P/N) 6627401000-005 with a new HSAA, per a method approved by
the Manager, Wichita Aircraft Certification Office (ACO), FAA.

FLIGHT LIMITS

(b) Non-revenue flights are permitted within 3 days after the effective date
of this AD only for the purpose of positioning the airplane to a
location where the replacement required by paragraph (a) of this
AD can be accomplished.

PARTS INSTALLATION

(c) As of the effective date of this AD, no person may install an HSAA, P/N
6627401000-005, on any airplane.

ALTERNATIVE METHODS OF COMPLIANCE

(d) In accordance with 14 CFR 39.19, the Manager, Wichita Aircraft
Certification Office (ACO), FAA, is authorized to approve
alternative methods of compliance for this AD.

EFFECTIVE DATE

(e) This amendment becomes effective August 13, 2003.

Issued in Renton, Washington, on August 8, 2003. Vi L. Lipski, Manager,
Transport Airplane Directorate, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Greg Davied, Aerospace Engineer, Airframe
and Propulsion Branch, ACE-118W, FAA, Wichita Aircraft Certification Office,
1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209;
telephone (316) 946-4128; fax (316) 946-4107.

willbav8r

The AD applies to US registered aircraft.

Sheesh, if this is true no matter what the cause it sure will look like crummy timing.......

chinny

Oh this is very true

"
August 14, 2003 From the editors of Aviation International News

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Breaking Stories
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Learjet 45 Fleet Grounded Until Fix Is Made
An AD issued yesterday has effectively grounded the U.S.-registered fleet of 175 Bombardier Learjet 45s (and about 11 others in the UK, as a result of a similar AD by the CAA). AD 2003-16-19 stems from an incident last March in Australia in which a Learjet 45 experienced “severe vibration followed by a rapid nose-down pitch change.” The crew was able to maintain control of the aircraft and land safety. The ensuing investigation determined the incident was due to failure of the horizontal stabilizer actuator jackscrew and resulted in an April 11 AD requiring the replacement of part number T/N6627401000-001 with newly approved -005. But the FAA has decided that while P/N-005 is an improvement over P/N-001, the new part “was not manufactured per the type design data. A brittle fracture could occur. We determined that the configuration and quality controls over the production of these parts were so deficient that we do not have confidence that the airplane can be operated safely for any period of time.” The part is manufactured by MPC Products of Skokie, Ill. Owners have until this Saturday to fly the aircraft to a maintenance facility of their choice. According to a Learjet spokesman, the company has faith in P/N-005 and is working with the FAA to prove it will do the job. Bombardier is also working with the FAA on the certification of a new part should approval of P/N-005 not be granted. In either case, the certification process is not expected to conclude until the end of the month, after which replacement parts will start to be shipped. In the interim, supplemental lift will be provided by Skyjet, Bombardier’s air charter operation.


Australia-I believe- has grounded all of their 45's TFN

willbav8r

What about the Cancun incident/accident? Was that true or a rumour?

ON-AIR

I STILL HAVE NO CONFIRMATION IT WAS A LEAR 45, CAN ANYONE SHED ANY LIGHT ON THE MATTER ?

Ref + 10

chinny,

Australian 45 still grounded and operators are saying at least another fortnight before they are airborne again.

Ref

chinny

Heard yesterday that the New approved(yet to be from FAA) part,-7,won't be avail over in European sector until some time in Nov

chinny

FAA have approved the part and production is under way-reckon that they will produce 16 a day-hopefully not too long now!!