Term
| What is "Class II Navigation"? |
|
Definition
Class II Navigation is any enroute flight operation which is planned to be outside the operational service volume of ground based navigation facilities for more than an hour. This typically involves flights that will exceed 725 NM between ground based navigation facilities. (Based on High VOR service volume of 130nm x2 and 60min at a speed of 468kts between facilities)
(FOM Rev. 18- 12.1.9) |
|
|
Term
| When is a plotting chart required? |
|
Definition
Plotting charts are to be used for all Class II Navigation.
If Oceanic you must plot ETOPS- E.ENT, E.EXT, and ETP's at least
(FOM Rev 18- 9.1.13 & 12.1.9) |
|
|
Term
| What is the definition of ETOPS? |
|
Definition
On the 777F it is the area starting at the ETOPS Entry point (E.ENT) and continuing to the final ETOPS Exit point (E.EXT) along the planned route. E.ENT and E.EXT are defined by a fixed distance radius from an adequate airport (using the 60 min/ 438 NM). For an ETOPS flight, there is only one E.ENT and one E.EXT. (Max diversion distance is 1307 NM for 180 min.)
(FOM Rev 18 9.1.5 & Table 9.1.1) |
|
|
Term
| What is an Adequate Airport? |
|
Definition
An Adequate Airport is used to define the ETOPS Area of Operation.
These are shown on the Maps and Company Docs section of the OFP. (See attached graphic)
It is not necessarily suitable for landing, but must have forecast winds at the time of arrival to allow for a landing in 60% of the runway length. The airport must have Part 139 approval or equivalent to Part 139.D.
(FOM Rev 18- 9.1.5)
(OpSpec B342)
(FAR 121.197) |
|
|
Term
| What is an ETOPS Alternate Airport? |
|
Definition
An airport designated in the dispatch/flight release for use in the event of a diversion during ETOPS.
Factors-
in OpSpec B342
Origin, destination or Redispatch airport (dispatch)
Rescue and Fire Fighting Services category 4 (dispatch)
Airplane config, weight, and systems status
ETOPS Alternate Airport fuel requirements
Alternate Airport Minimums
MEA and terrain considerations en route to the ETOPS Alternate Airport and approach aid
NOTAMS and serviceability
Normal required landing distance
Passenger and crew disembarkation facilities and accommodations
(FOM Rev 18- 9.1.5-6) |
|
|
Term
| Who is responsible for monitoring ETOPS Alternate Airport conditions enroute before E.ENT |
|
Definition
Dispatch does this.
(FOM Rev 18- 9.1.15) |
|
|
Term
| Diversion considerations after E.ENT |
|
Definition
In an emergency, land at the nearest suitable airport regardless of ETOPS Alternate Airports.
(FOM Rev 18- 9.1.16) |
|
|
Term
| What happens if an ETOPS Alternate becomes unsuitable after passing E.ENT? |
|
Definition
Crew and dispatch will attempt to find a suitable substitute. A plan will be agreed upon. The flight may continue as released with no suitable ETOPS Alternate.
(FOM Rev 18- 9.1.16-17) |
|
|
Term
| When must a PDSC be accomplished? |
|
Definition
A Pre-Departure Service Check must be accomplished no more than 4 hours prior to an ETOPS flight.
(FOM Rev 18- 9.1.26) |
|
|
Term
| When must and APU inflight test be done on ETOPS 777 aircraft? |
|
Definition
They must be done a minimum of once every 90 days.
(FOM Rev 18- 9.1.27) |
|
|
Term
| When a PDSC is signed off, are any other inspections credited? |
|
Definition
Yes, the aircraft receiving the Pre Departure Service Check will receive credit for a Transit Check.
(B777 MSG-3 Maintenance & Inspection
Program Manual (MIPM), Rev 13- 1.1.2)) |
|
|
