LOST COMMO
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LOST COMMO. Enabling Learning Objective F. Action: Given a situation involving two-way radio failure, the student will identify the appropriate pilot actions. Lost Commo Procedures.

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LOST COMMO

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Lost commo

LOST COMMO


Enabling learning objective f

Enabling Learning Objective F

Action: Given a situation involving two-way radio failure, the student will identify the appropriate pilot actions.


Lost commo procedures

Lost Commo Procedures

  • During two-way radio communications failure, when confronted with a situation not covered in the regulation, pilots are expected to exercise good judgement in whatever action they elect to take.


Lost commo procedures1

Lost Commo Procedures

  • Check Radios

  • Try another radio

  • Try another frequency

  • Have Co-pilot try to contact ATC

  • Go back to last frequency

  • Attempt contact on emergency frequency

  • Place transponder to 7600

  • Turn volume up on Navigation receivers.


Lost commo procedures encountering vmc conditions

Lost Commo Procedures Encountering VMC conditions

  • During VMC flight conditions

    • Maintain VMC

    • Land as soon as practicable

    • Notify ATC


Lost commo procedures route selection

Lost Commo ProceduresRoute Selection

  • During IMC flight conditions

    • As assigned

    • Expected

    • Filed

    • Vectors


Lost commo procedures2

Lost Commo Procedures

Route: As assigned –

Proceed as directed in the last ATC clearance received


Lost commo procedures3

Lost Commo Procedures

Route: Radar Vector –

Proceed by a direct route from the point of radio failure to the fix, route or airway specified in the vector clearance


Lost commo procedures4

Lost Commo Procedures

Route: (None Assigned) -

Proceed by the route ATC has advised may be expected in a further clearance

OR:

In the absence of an assigned route or a route that ATC has advised may be expected in a further clearance, proceed by the route filed in the flight plan.


Lost commo procedures altitudes

Lost Commo ProceduresAltitudes

In IMC flight conditions, the altitude maintained shall be the HIGHEST of

  • Last Assigned

  • Minimum IFR altitude for the route segment being flown

  • Expected


Lost commo altitudes

Lost Commo Altitudes

“Army 12345 Climb and maintain 4000 expect 6000 at Bravo.”

  • Fly at the Highest of the Following for the Route Segment:

  • A. The Altitude Assigned in the Last ATC Clearance Received

  • B. The Minimum Altitude For IFR Operation (e.g. MEA MOCA)

  • The Altitude ATC has Advised may be expected in a further

  • clearance

7000

6000

6000

6000

4000

MCA 7000

MCA 7000

X

X

3000

*2500

3000

7000

5000

3000

*2500

A

B

C

D

E

F


Lost commo altitudes1

Lost Commo Altitudes

Fly at the Highest of the Following for the Route Segment:

A. The altitude assigned in the last ATC clearance received

B. The minimum altitude For IFR operation (e.g. MEA MOCA)

C. The Altitude ATC has advised may be expected in a further clearance

“Army 12345 climb and maintain 4000. Expect 2500 at Echo.”

7000

5000

4000

4000

4000

MCA 7000

MCA 7000

X

X

3000

7000

5000

3000

*2500

3000

A

B

C

D

E

F


Lost commo

MCA 6000

MCA 6000

X

X

PRINCE

112.1 PNC

3000

2600

3800

GRUMP

4000

6000

SLEPY

5000

SNOW WHITE

111.6 SNW

SNEZY

DOPEY

2200

DISNEY

109.2 DSY

6000

5000

4000

4000

4000

3000

3000

“Army 12345 climb and maintain 3000. Expect 4000 at Slepy.

COMMO LOST


Lost commo

MCA 6000

X

X

PRINCE

112.1 PNC

MCA 6000

3000

2600

3800

GRUMP

4000

6000

SLEPY

5000

SNOW WHITE

111.6 SNW

SNEZY

DOPEY

2200

DISNEY

109.2 DSY

6000

6000

6000

6000

6000

6000

6000

“Army 12345 climb and maintain 6000. Expect 4000 at Slepy.

COMMO LOST


Lost commo

X

X

PRINCE

112.1 PNC

2000

MCA 6000

2600

MCA 6000

3800

GRUMP

4000

SLEPY

5000

SNOW WHITE

111.6 SNW

SNEZY

DOPEY

2200

DISNEY

109.2 DSY

6000

5000

4000

3800

3000

3000

2000

“Army 12345 climb and maintain 2000. Expect 3000 at Grump.”

COMMO LOST


Lost commo

Amended Altitude Clearance


Lost commo

MONTGOMERY

112.1 MGM

  • Clearance

  • “ATC clears Army 12345 to the Montgomery Airport as filed. On departure climb and maintain 2000. Expect 4000 at Banbi……….”

If a subsequent altitude clearance does not include the “expect 4000”, issued previously, the expected altitude clearance is considered cancelled.

EUFAULA

109.2 EUF

  • Amended Clearance

  • “Army 12345 climb and maintain 3000.”

SHADY

BANBI

CLIOS

CAIRNS 111.2 OZR

WIREGRASS

111.6 RRS


Lost commo

QUESTIONS?


Lost commo procedures5

Lost Commo Procedures

  • Clearance Limit:

    • When the clearance limit is a fix from which an approach begins:

      • Commence descent and approach as close as possible to the EFC if one has been received.

      • If an EFC has not been received commence descent and approach as close as possible to the ETA as calculated from the filed or amended ETA.


Lost commo

CLEARANCE LIMIT -

A fix from which an approach begins (IAF)


Lost commo

CLEARANCE LIMIT - Wiregrass VORTAC

HOLD

EFC time - 16:15

Arrival time - 16:06

Destination - Cairns


Lost commo

CLEARANCE LIMIT - Cairns VOR

CONTINUE

Destination -Cairns

EFC time - 16:15

Arrival time - 16:18


Lost commo

CLEARANCE LIMIT - Cairns VOR

HOLD

Destination - Cairns

EFC time - None

Arrival time - 16:10

ETA - 16:20


Lost communications procedures

Lost Communications Procedures

  • Clearance Limit

    • When the clearance limit is not a fix from which the approach begins:

      • Leave the clearance limit at the EFC time if one has been received.

      • If an EFC has not been received, proceed to a fix from which the approach begins and commence descent and approach as close as possible to the ETA as calculated from the filed flight plan or as amended with ATC.


Lost commo

To Hold or Not to Hold


Lost commo

Clearance limit - Shady Intersection

EFC time - 20:45

Arrival time - 20:37

HOLD


Lost commo

Clearance limit - Shady Intersection

EFC time - 20:45

Arrival time - 20:46

CONTINUE


Lost commo

Clearance limit - Shady Intersection

EFC time - None received

Arrival time - 20:40

CONTINUE


Lost commo

HOLD

Original clearance limit – Montgomery Airport

Last ATC instructions prior to commo loss: “Army 12345 cleared to Shady. Hold Southeast of Shady on Victor 7 Expect further clearance at 20:50.”

Arrival time - 20:40


Lost commo

CONTINUE

Clearance limit – Montgomery Airport

Last ATC instructions prior to commo loss: “Army 12345 expect to hold at Shady”.

Arrival time - 20:40


Lost commo

If the clearance limit is a fix from which an approach begins AND holding is necessary, hold as follows:


Lost communications procedures1

Lost Communications Procedures

  • Terminal Holding fix:

    • If arriving at the approach fix before the ETA hold until the ETA as calculated from the filed flight plan or amended with ATC:

      • Arrival Holding Pattern

      • Holding Pattern in lieu of Procedure Turn

      • On the final approach course on the Procedure Turn side

      • On the arrival course


Arrival holding pattern

Arrival Holding Pattern


Holding pattern in lieu of procedure turn

Holding Pattern in Lieu of Procedure Turn


Holding on the final approach course procedure turn side

Holding on the Final Approach Course Procedure Turn Side


Lost commo

If more than one approach fix is available, the pilot may choose the one most appropriate for the situation, as ATC protects airspace at all of them.


Lost commo

QUESTIONS?


At destination map runway or runway environment not in sight

At Destination MAP - Runway or Runway Environment NOT in sight

Uh-Oh!

(This is definitely NOT your day!)


Lost commo

Proceeding to the Alternate


Lost commo

Alternate Routing and ETE

Begin at the Missed Approach Point

To the missed approach holding point

One holding pattern (for fuel planning)

Then by the most direct reasonable routing to the IAF at the alternate

PLUS the approach at the alternate.


Lost commo

Routing to the Alternate

Destination - Eufaula

Alternate - Dothan

Fly to alternate using the MEA appropriate for the route segment being flown.


Lost commo

Routing to the Alternate

Destination – Andalusia

Alternate - Cairns

Determine Minimum Altitude for IFR

No reasonably direct airway routing available


Lost commo

Lost Commo during Radar Approach

  • If no transmissions are heard in the time specified by the controller:

    • 1. Attempt contact on alternate frequency.

    • 2. If unable, maintain VMC - or -

    • 3. Execute the lost commo procedures as previously directed by ATC.

    • 4. If no altitude was specified, climb to MSA or ESA.


Lost communications procedures2

Lost Communications Procedures

  • Altimeter Settings:

    • If able obtain the destination altimeter setting from ATIS.

    • If not able to obtain the destination altimeter setting use the minimum altimeter setting forecasted for the destination from the DD Form 175-1.


Lost commo

Special Military Procedures

Aircraft on a flight in which a delay enroute is planned will commence descent at the destination at the estimated time of arrival derived from the estimated time enroute plus any delay for which an ATC clearance has been received.


Lost commo

QUESTIONS?


Lost commo

Sick & Tired of IFR COMMO?

Consider an Alternate Career and talk on a CB radio without all those silly rules!!!

Every day is a new gear-jamming, double clutching,air horn blasting, pedal to the metal adventure!

No initial contact. No position reports. No compulsory reporting points. No worries about those pesky mandatory altitudes, and Smokey’s the only radar you need to sweat!!!

DIAL 1-800-BIG-TRUK


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