ENGINE TEST LOG SHEETS
and the duration of that temperature. Record the
time for acceleration and the stabilization time.
At the end of the test, record the engine coast-
The engine test log records the data obtained
down time. Coast-down time is defined as the time
during the engine test run. See figure 10-24. The
log provides a record of the engine test for future
elapsed from the moment fuel is cut off to the
reference and acts as documentary proof that the
time the engine comes to a complete stop. Coast-
engine was subjected to the prescribed test
down time has no absolute value. A record main-
procedures. The data must be complete, accurate,
tained for engines will show what the expected
average coast-down time should be. Any engine
neat, and legible. Upon receipt of the engine for
with an abnormally short coast-down time should
testing, the operator will enter the name of the
testing activity, the engine model, serial number
be viewed with suspicion and investigated for
of the engine, and the date of the engine test.
compressor rub or other malfunctions. The
operator is required to sign all the test run logs,
During the test, record all unusual occurrences
and is held responsible for the accuracy and
in the remarks section of the test log. Record all
completeness of all the test data.
starts, shutdowns, times for accelerations, and
Test schedules will vary with each different
times for adjustments and settings. During starts,
model of engine and manufacturer. Always
record the time of day the engine was started,
refer to the appropriate engine manual when
maximum turbine inlet temperature encountered,
performing engine test runs.
10-29