Flying and counting

[flingwinger]

Ray beat me to it. And here is the Airframe Airworthiness limitations manual reference (in part) to cycle counting for landings. It does say FLIGHT HOURS (FH)= Takeoff to Landing 

[flingwinger]

[vortex]

So a FADEC counts every start regardless of whether the machine lifts off or not but I'm curios if P&W or Honeywell has the same view on starts as RR which is clear that every start is a start. Very kind of the French engine guys not to count start cycles for maintenance.  

[flingwinger]

Here is what Rolls Royce requires Re: Start cycles, from the RR300 manual which is VERY cycle limited.  TBO is 3000CYC or 2000HRS whichever comes first. 

Chapter 05-12-00 contains FAA approved life limitations for those engine parts that are life limited.

Life limits of parts are based on total hours or total cycles, which ever occurs first.

(1) Definition of an Engine Hour

Operating hours with respect to maintenance records means the time from the moment an

aircraft leaves the surface of the earth until it touches at the next point of landing.

(2) Definition of an Engine Cycle

A cycle is defined as a start or start attempt when fuel ignition occurred. The operator is

required to keep a record of engine cycles

[Freewheel]

18 hours ago, flingwinger said:

It does say FLIGHT HOURS (FH)= Takeoff to Landing 

Airbus Helicopters further reiterated that the definition of flight hours (not to be confused with Flight TIME) corresponds to Air Time as defined in CARs Section 101.01:

Q1. Engine Start Time/Blades turning: 754

 Time Up    Time Dn     Air Time    Starts    Comments

800           804              4 min             1      CYMO – Lagoon

809            812             3 min             0    Lagoon – CYMO

816             819             3 min           0      CYMO – Lagoon

822             825             3 min           0      Lagoon – CYMO

829             833             4 min           0      CYMO – Lagoon

838             841             3 min           0      Lagoon – CYMO

844             847             3 min           0      CYMO – Lagoon

850             853             3 min           0      Lagoon – CYMO

855             858             3 min           0      CYMO – Lagoon

904             909             5 min           0      Lagoon – CYMO

 Engine Shutdown @ 912; Rotors Stopped @ 914

Q2. Engine Start Time/Blades turning: 754

 Time Up    Time Dn     Air Time    Starts    Comments

800             824             24 min           1      CYCN – CYTS

 Engine Shut Down @ 830; Rotors stopped @ 831

 Airbus Technical support repose below:

“Good morning,

 I am doing ok here I hope you are also.

 Regarding your question yesterday on flight and air time please review the following.

Airbus Helicopters is concerned with limitations expressed in Flight Hours (FH), Calendar time & Cycles.

The definition of FH is given in both the Chapter 4 Airworthiness Limitations Section (ALS) and Chapter 5 Master Servicing Manual (MSM) both are available through TIPI and as part of the standard documentation for each model of aircraft operated.

This definition of flight hours (not to be confused with Flight TIME) corresponds to Air Time as defined in CARs Section 101.01:

 Airbus Helicopters does not take into account running time (i.e. flight time by ICAO definition) for purposes of tracking limitations.

 So in answer to your two questions:

 A1: answer a. Flight Time = 1.3 / Air Time = 0.6

A2: answer  Flight Time = 0.6 / Air Time = 0.4 (Note: rotors stopped at 0831)

 If you have any further questions regarding Airbus Helicopters requirements for tracking time please let us know.

Best regards,

Rod

Rod TUPALA

Technical Support (Ontario)

Airbus Helicopters Canada Limited”