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requiring pilots to search for the information they need.
The following reporter recognized this as a significant issue.
■ PDC format is not standardized. It also does not
conform with the way clearances are read to you from
Clearance Delivery. Putting “cleared as filed” up on top
followed by the Standard Instrument Departure in the
remarks section is too easy to miss in the last minute flurry
of activity at pushback time.
Another aspect of formatting includes readability issues.
For example, one pilot reported that non-standard
abbreviations are often used for altitude restrictions. He
suggested that critical instructions always be spelled out.
Pilots’ recommendations for enhancing readability of PDCs
include:
✔ Standardize the PDC format to duplicate the ATC
format.
✔ Mark any changes from “as filed” with ******* or other
eye-catching notation.
✔ Provide pilots with additional training in reading
PDCs.
Readers will note from the number at the upper lefthand
corner of this page that CALLBACK has reached
a new milestone–200 consecutive issues published since
July 1979.
founding Editor, Rex Hardy, produced this little twopage
blue bulletin and guided CALLBACK through its
first 100 issues. CALLBACK’s second
century, it’s time to recognize the involvement of
another editorial talent–Marcia Patten.
Ms. Patten has contributed many articles to
CALLBACK during the last year, and next month (with
issue #201) will assume the position of Managing
Editor.
certified rotorcraft flight instructor, with more than
1,200 flight hours in Hughes, Bell, and Aerospatiale
helicopters.
aviation aircraft.
follows in the Hardy Humanistic tradition, with a B.A.
degree in Classics and a Masters in Education.
We hope readers will continue to learn and profit from
the incidents presented here, as the ASRS editorial
staff carries on Rex’s mission of making CALLBACK
“interesting, instructive, and even–sometimes–
entertaining.”
In the Footsteps Of
– Rowena Morrison, Editor
Seventeen years ago, the inimitable
At the end of
She is a commercial helicopter pilot and
She is also an experienced pilot of general
Perhaps as important, Ms. Patten
ASRS Recently Issued Alerts On...
Yaw damper malfunction on a Fokker F-28
An unreliable remote radar system in Texas
Fuel system controller malfunction in an MD-80
An EMB-120 display failure caused by rainwater leakage
Caustic fumes due to a B-737 frozen air conditioning pack
A Monthly Safety Bulletin
from
The Office of the NASA
Aviation Safety Reporting
System,
P.O. Box 189,
Moffett Field, CA
94035-0189
November 1995 Report Intake
Air Carrier Pilots 1740
General Aviation Pilots 663
Controllers 107
Cabin/Mechanics/Military/Other 40
TOTAL 2550
Say Again, Say Again...
Communication errors occur on both sides of the radio.
Many errors are corrected during a readback. Others
are transmitted back and forth, compounding their
severity. A General Aviation pilot’s experience is not
uncommon:
■ I arrived at the hold line before another small
airplane. That pilot advised, “Ready to go, southeast
departure.” I called in right after, explaining that I was
number one at the hold line. [The Controller’s] response
was, “Roger, position and hold,” without actually saying
my callsign. I verified position and hold, without
actually saying my numbers as well. I pulled onto the
centerline to see an airborne FAA ILS Check plane
approaching me from the opposite end of the runway at
a high closure rate.
The Controller stated for the unauthorized aircraft to
remove itself immediately from the active runway.
The Controller had actually said, “Hold short.” I heard
“Position and hold,” and even read back that
instruction. Anytime there is the slightest chance for
miscommunication, [one should] always verify to whom
the radio call was directed, and mention callsigns with
every readback instead of relying on voice identification.
Don’t forget that two clicks of the microphone do not
qualify as adequate identification.
Your Left, Right?
The old Abbott and Costello comedy routine, “Who’s on
First,” is a well-known example of how an intended
meaning can get lost in the exchange between the
speaker and the recipient. In the following report, the
ground crew’s hand signals were at odds with the flight
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