Bonjour !
Je rouvre un fil, hors du bazar ANTLE !
Juste pour un AD marrant !
Le syndrôme des voitures de retraités a atteint les T500 !
Formation de carbone, en gros tout s'encrasse en sortie la chambre de combustion, pas assez de T°, de pression, de vitesse , pour s'autonettoyer etc ... !
La limite basse du dé-tarage du T700 ! Etonnant !
Nettoyer, changer des pièces ... hum ! A suivre !
------------------- Extrait de la com FAA ----------------
http://www.federalregister.gov/articles/2011/06/24/2011-15677/airworthiness-directives-rolls-royce-plc-rb211-trent-500-series-turbofan-engines
Airworthiness Directives; Rolls-Royce plc RB211-Trent 500 Series Turbofan Engines
A Rule by the Federal Aviation Administration on 06/24/2011
Legal Disclaimer
Publication Date:Friday, June 24, 2011
Summary
We are adopting a new airworthiness directive (AD) for the products listed above. This AD
results from mandatory continuing airworthiness information (MCAI)
issued by an aviation authority of another country to identify and
correct an unsafe condition on an aviation product. The MCAI describes
the unsafe condition as:Show citation box
A Trent 500 engine has been found with thermal distress of the Intermediate Pressure
(IP) Turbine Nozzle Guide Vanes. The resultant investigation found the
root cause to be carbon blockage of the fuel spray nozzles. The source
of the carbon has been identified to be the RH fuel manifold assembly.
Analysis has verified that low fuel velocity and thermal input may cause
formation of carbon in a specific region of the RH fuel manifold. As
advanced thermal distress of IP Turbine components may potentially
result in uncontained, high energy debris release, the formation of
carbon in the RH fuel manifold constitutes a potentially unsafe
condition. To address and correct this unsafe condition, Rolls Royce
have developed a cleaning or replacement programme of the RH fuel
manifold and an optional part replacement.Show citation box
We are issuing this AD to prevent the release of uncontained high-energy debris in the
event of IP turbine component failure, which could result in damage to
the airplane.
JPRS
Je rouvre un fil, hors du bazar ANTLE !
Juste pour un AD marrant !
Le syndrôme des voitures de retraités a atteint les T500 !
Formation de carbone, en gros tout s'encrasse en sortie la chambre de combustion, pas assez de T°, de pression, de vitesse , pour s'autonettoyer etc ... !
La limite basse du dé-tarage du T700 ! Etonnant !
Nettoyer, changer des pièces ... hum ! A suivre !
------------------- Extrait de la com FAA ----------------
http://www.federalregister.gov/articles/2011/06/24/2011-15677/airworthiness-directives-rolls-royce-plc-rb211-trent-500-series-turbofan-engines
Airworthiness Directives; Rolls-Royce plc RB211-Trent 500 Series Turbofan Engines
A Rule by the Federal Aviation Administration on 06/24/2011
Legal Disclaimer
Publication Date:Friday, June 24, 2011
Summary
We are adopting a new airworthiness directive (AD) for the products listed above. This AD
results from mandatory continuing airworthiness information (MCAI)
issued by an aviation authority of another country to identify and
correct an unsafe condition on an aviation product. The MCAI describes
the unsafe condition as:Show citation box
A Trent 500 engine has been found with thermal distress of the Intermediate Pressure
(IP) Turbine Nozzle Guide Vanes. The resultant investigation found the
root cause to be carbon blockage of the fuel spray nozzles. The source
of the carbon has been identified to be the RH fuel manifold assembly.
Analysis has verified that low fuel velocity and thermal input may cause
formation of carbon in a specific region of the RH fuel manifold. As
advanced thermal distress of IP Turbine components may potentially
result in uncontained, high energy debris release, the formation of
carbon in the RH fuel manifold constitutes a potentially unsafe
condition. To address and correct this unsafe condition, Rolls Royce
have developed a cleaning or replacement programme of the RH fuel
manifold and an optional part replacement.Show citation box
We are issuing this AD to prevent the release of uncontained high-energy debris in the
event of IP turbine component failure, which could result in damage to
the airplane.
JPRS