Emergency Airworthiness Directive: A320NEO mit PW Triebwerken // Trouble ahead

ANZEIGE

Fare_IT

Erfahrenes Mitglied
06.12.2012
4.487
15
Farewell City
ANZEIGE
Die EAD bedeutet, dass ab sofort ETOPS Operations mit den betroffenen PW Triebwerken untersagt sind.

Die Frage drängt sich auf, woher die PW Triebwerke im Flug wissen, ob

* sie auf FRA HAM unterwegs sind, ODER

* LAX HNL

:confused:

News: EASA issues EAD regarding A320 Neo and A321 Neo engines, withdraws ETOPS with immediate effect

Airbus stops accepting PW1100G engines for A320neo aircraft | Engines content from ATWOnline

daraus

The problem involves the knife-edge seal in the high-pressure compressor aft hub and can potentially appear on engines starting with serial number P770450. 33 aircraft, according to Airbus and the European Aviation Safety Agency (EASA).Airbus says around one-third of the in-service fleet of A320neos and A321neos has those engines installed so far, 11 of which are understood to have all two engines of the problematic standard and 21 just one of them.

https://www.ch-aviation.com/portal/news/64272-select-a320neo-grounded-over-new-pw-1100g-issues

daraus

Operators that have thus far been forced to ground select jets include IndiGo Airlines (6E, Delhi Int'l). According to The Economic Times, three of the Indian LCC's thirty-two A320neo have been taken out of service, by order of the Indian Directorate General of Civil Aviation (DGCA), pending remedial action. CNN reports Hawaiian Airlines (HA, Honolulu) has also confirmed that one of its A321neo is affected and that it has since been taken out of service.

Hier nochmal die Voraussetzungen nach FAA Rules für den "unlikely" event:

FAA ETOPS requirements per 14 CFR 21.4

In-flight shutdown (IFSD) means, for ETOPS only, when an engine ceases to function (when the airplane is airborne) and is shutdown, whether self induced, flightcrew initiated or caused by an external influence. The FAA considers IFSD for all causes: for example, flameout, internal failure, flightcrew initiated shutdown, foreign object ingestion, icing, inability to obtain or control desired thrust or power, and cycling of the start control, however briefly, even if the engine operates normally for the remainder of the flight. This definition excludes the airborne cessation of the functioning of an engine when immediately followed by an automatic engine relight and when an engine does not achieve desired thrust or power but is not shutdown.

(i) A rate of 0.05 per 1,000 world-fleet engine-hours for an airplane-engine combination approved for up to and including 120-minute ETOPS. When all ETOPS operators have complied with the corrective actions required in the configuration, maintenance and procedures (CMP) document as a condition for ETOPS approval, the rate to be maintained is at or below 0.02 per 1,000 world-fleet engine-hours.

(ii) A rate of 0.02 per 1,000 world-fleet engine-hours for an airplane-engine combination approved for up to and including 180-minute ETOPS, including airplane-engine combinations approved for 207-minute ETOPS in the North Pacific operating area under appendix P, section I, paragraph (h), of part 121 of this chapter.

(iii) A rate of 0.01 per 1,000 world-fleet engine-hours for an airplane-engine combination approved for ETOPS beyond 180 minutes, excluding airplane-engine combinations approved for 207-minute ETOPS in the North Pacific operating area under appendix P, section I, paragraph (h), of part 121 of this chapter.
 
  • Like
Reaktionen: on_tour

shortfinal

Erfahrener Maximierer
28.05.2010
3.672
389
STR
Die AD betrifft nur neue Triebwerke ab einer bestimmten Seriennummer, deswegen ist die Flotte der LH nicht betroffen.
Des Weiteren darf bei non-ETOPS betrieb eines der beiden Triebwerke betroffen sein, da sich auf FRA-HAM wesentlich besser einen Ausweichflughafen finden lässt als auf LAX-HNL.
 
  • Like
Reaktionen: Fare_IT