曝光台 注意防骗
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way…
In the future, I will specifically review the applicable
enroute chart BEFORE departing ANY airspace VFR. I
would not enjoy being an uninvited guest in certain
classes of airspace.
Especially since uninvited guests in certain classes of
controlled airspace may be intercepted by F16’s.
A Monthly Safety Bulletin
from
The Office of the NASA
Aviation Safety Reporting
System,
P.O. Box 189,
Moffett Field, CA
94035-0189
http://asrs.arc.nasa.gov/
ASRS Recently Issued Alerts On…
MD80 auto spoiler deployment incidents
ATC handling of an air carrier on a STAR routing
Incidents involving CL65 trailing edge inflight failure
Unusual wake turbulence incident involving a EMB-145
Security incidents since the Sept. 11th national emergency
November 2001 Report Intake
Air Carrier / Air Taxi Pilots 1721
General Aviation Pilots 850
Controllers 30
Cabin/Mechanics/Military/Other 103
TOTAL 2704
Number 269 January 2002
It’s Nice to De-Ice – But Be Careful!
Icing – its presence and possibility – is
a staple of winter operations that pilots
must reckon with in their pre-flight
inspections. According to ASRS
reporters, the attempt to remove ice
from an aircraft before flight may have
consequences just as hazardous as an
unexpected encounter with icing while
airborne. We illustrate with a First
Officer’s report that describes how
routine ice-removal procedures went
awry.
During rotation Runway 25L, lost autothrottles,
Flight Director, and Captain’s airspeed began to
decrease. GPWS [Ground Proximity Warning System]
began alert, “Terrain, terrain” and “Whoop, Whoop, pull
up!” Attempted to stay VFR but unable. Flew vectored
ILS to runway 35L. On landing, unable to start APU.
During pattern, may have deviated from assigned
headings or altitudes. Tower controller outstanding and
very helpful. Captain made excellent use of all resources
including First Officer, ATC, Flight Attendants, and
company.
This reporter told ASRS analysts during a callback
conversation that the aircraft had spent the night on
the ground during a severe ice storm and as a result
was de-iced prior to departure. The reporter believed
the problem was caused by de-icing fluid in the pitot
and static tubes of the #1 system.
The Broom
That Didn’t Sweep Clean
The ASRS web site (http://asrs.arc.nasa.gov) has
been updated with new “interactive” Adobe Acrobat
versions of the program’s reporting forms. After web
site users download a reporting form, they can now
fill it out using their computer to enter information.
All four ASRS forms have been updated with this
new interactive feature. The forms include:
• General Form (for pilots, dispatchers, airport
personnel, and others)
• ATC Form (for Air Traffic Controllers)
• Maintenance Form (for aviation maintenance
personnel)
• Cabin Crew Form (for airline cabin crew
members)
Important Note: The free (non-commercial)
version of the Adobe Acrobat Reader does not
allow users to “save” information entered into
the forms. Once the forms are filled out using the
freeware version of the Acrobat Reader, they must be
printed to preserve the information entered.
Reporters can print a duplicate copy of the report for
their own records at this time, also. Completed forms
should be mailed to ASRS at the address given
on the form.
ASRS Updates Web Site
Reporting Forms
The flight crew of a regional passenger jet experienced an
equally harrowing aftermath of ice removal. From the
Captain’s report to ASRS:
Our airplane was boarded 20 minutes late because of
heavy sleet, snow and rain... Later, residual slush build-up
on the airplane was swept off… Start-up, taxi out for takeoff
was normal… Takeoff on Runway 35 was normal. Cleared
to climb to 9,000 feet (all anti-ice protection on), everything
in the climb was normal. However, when I went to level off,
I immediately noticed I couldn’t push the nose over! We
were on instruments (OAT -14 degrees Celsius). I noticed
about a 1-inch strip of rime ice on the leading edge of the
wing. My own past experience told me this was not enough
ice to freeze up the controls. I was able to arrest the climb
somewhat with use of trim and power, while continuing to
free up controls. Then, all of a sudden it [the ice] let loose
and an abrupt nose-down attitude resulted… This [sticking
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