914 Log-Analyse

Date21.10.

Start – End14:35:09 – 15:01:37

Recording time26:28 min

Engine run time26:28 min

Sampling rateØ 13 Hz

FormatTLR 4.6 LOG

Rating

Warning 14:39:47
5800 up to max. 6200 rpm for max. 1 minute (max. 5,839 1/min, 51.2 s)
Actions
1. No action is required.

Time by throttle position

Range

%

Time

Share

Idle

0–5

7:54 min

29.8 %

Taxi

5–40

4:12 min

15.9 %

Part load

40–90

1:49 min

6.8 %

Continuous power

90–106

5:42 min

21.5 %

TCU transition range

106–112

1.3 s

0.1 %

Take-off power

112–115

6:50 min

25.8 %

Caution: TCU transition range (108–110 %)
The throttle range between 108 % and 110 % must be avoided and passed through quickly when opening and closing the throttle, as unstable boost control and controller oscillations can occur in this range.

Source files

10211435.LOG · 10211440.LOG · 10211445.LOG · 10211450.LOG · 10211455.LOG · 10211501.LOG

Channels

Channel

Min

Max

Max. at

Engine speed

1,940

5,839

1/min

Throttle position

115.0

%

Ambient pressure

797

910

mbar

Manifold pressure act.

842

1,426

mbar

Manifold pressure nom.

1,000

1,500

mbar

Servo position

56.3

101.3

%

Airbox temperature

19.9

83.3

°C

Height above start

27

3,546

ft

TCU memory · TCU_Memory_20261021_151614.txt

Engine number444444

Operating hours322:31 h

Boost time0:00 h (0.0 %)

Read out21.10.2026 15:16

Rating

Alarm 322:02 h
More than 6500 rpm (max. 7,221 1/min, operating time 322:02 h)
Actions
1. The whole engine must be inspected, repaired or overhauled in accordance with the BRP-Rotax instructions for continued airworthiness.
2. Check cylinder differential pressure.
3. Check that the push-rods are straight.
4. Check if piston had contact with valve.
5. Check for out of roundness of valves.
6. Replace the crankshaft. The crankshaft has to be inspected according to the current Overhaul Manual (OHM) for the respective engine type. Overhaul Manual (OHM) and its appendix is available for any appropriately rated person or entity on request and by following the standards of the original manufacturer.
7. Inspect all systems for correct functioning.
8. Detailed inspection of affected engine components.
Warning 322:04 h
5800 up to max. 6200 rpm for max. 1 minute (max. 5,996 1/min, operating time 322:04 h)
Actions
1. No action is required.
Alarm 322:09 h
More than 6500 rpm (max. 6,567 1/min, operating time 322:09 h)
Actions
1. The whole engine must be inspected, repaired or overhauled in accordance with the BRP-Rotax instructions for continued airworthiness.
2. Check cylinder differential pressure.
3. Check that the push-rods are straight.
4. Check if piston had contact with valve.
5. Check for out of roundness of valves.
6. Replace the crankshaft. The crankshaft has to be inspected according to the current Overhaul Manual (OHM) for the respective engine type. Overhaul Manual (OHM) and its appendix is available for any appropriately rated person or entity on request and by following the standards of the original manufacturer.
7. Inspect all systems for correct functioning.
8. Detailed inspection of affected engine components.
Warning 322:10 h
Above 1550 up to 1800 mbar (max. 1,566 mbar, operating time 322:10 h)
Actions
1. Caution overboost – please check the turbocharger control: see MMH 912-914 Chapter 76-10-00 TURBOCHARGER CONTROL UNIT (TCU).
Warning 322:11 h
5800 up to max. 6200 rpm for max. 1 minute (max. 5,993 1/min, operating time 322:11 h)
Actions
1. No action is required.
Warning 322:14 h
Above 1550 up to 1800 mbar (max. 1,643 mbar, operating time 322:14 h)
Actions
1. Caution overboost – please check the turbocharger control: see MMH 912-914 Chapter 76-10-00 TURBOCHARGER CONTROL UNIT (TCU).

Max. operating parameters

Channel

Maximum

Oper. time

Alerts

Alert time

SPEED

7221

rpm

322:02

5

0:00:13

AIRBOX_PRESS.

1643

mbar

322:14

3

0:00:06

AIRBOX_TEMP.

37

°C

322:01

0

0:00:00

BOOST

10.1

%/h

322:15

–

–

1 = SPEED 2 = LOAD (Throttle-Pos.) 3 = AIR_PRESSURE 4 = AIRBOX_PRESSURE 5 = AIRBOX_TEMPERATURE 6 = SERVO_POSITION 7 = (reserved) 8 = BOOST_TIME

Alarm records (1-minute maxima)

Oper. time	1	2	3	4	5	6	8
322:02	7221	95	940	942	37	105	0
322:04	5996	0	939	941	36	101	0
322:09	6567	114	937	939	36	104	0
322:10	4645	115	937	1566	36	106	346
322:11	5993	0	936	938	36	101	0
322:14	3600	115	938	1643	36	101	1123

Interval memory (1-minute maxima)

Oper. time	1	2	3	4	5	6	8
322:12	3600	0	936	939	36	100	0
322:13	3600	0	936	939	36	100	0
322:14	3600	115	938	1643	36	101	1123
322:15	4200	115	937	1543	37	103	261
322:16	2400	1	936	939	36	100	0
322:17	2400	1	936	939	37	100	0
322:18	2400	1	936	939	37	100	0
322:19	2400	1	936	939	37	100	0
322:20	2400	1	936	939	37	100	0
322:21	2400	1	936	939	37	100	0
322:22	2400	1	936	939	37	100	0
322:23	2400	1	936	939	37	100	0
322:24	2400	1	936	939	37	100	0
322:25	2400	1	936	939	37	100	0
322:26	2400	1	936	939	37	100	0
322:27	2400	1	936	939	37	100	0
322:28	2400	1	936	939	37	100	0
322:29	2400	1	936	939	37	100	0
322:30	2400	1	936	939	37	100	0
322:31	2400	1	936	939	37	100	0