Bulletins

BRISTELL B23

Bulletin No.
Bulletin číslo

Bulletin Classification
Klasifikace bulletinu

Date of Issue
Datum vydání

Bulletin title
Název bulletinu

Affected aircraft
Týká se letadel

Brief description
Stručný popis

Header

ADxC-73-SB-018

Service bulletin recommended to be accomplished to prevent significant operational disruptions

14.10.2022

Aileron AP system improvement

All BRM Aero B23 models and serial numbers with installed auto pilot system.

Improvement of the bracket connection (also called “sleeve”) connecting the aileron AP push rod with the aileron control system.

ADxC-73-SB-019

Service bulletin to introduce improvements

20.09.2022

Editorial change of the AFM

All serial numbers of Bristell B23 and Bristell B23-915 TCDS EASA.A.642

For model Bristell B23: Update cabin smoke procedure. Editorial endorsement of fuel type. Update of Carburettor heat use in normal procedures. List of supplements.

AFM download available at: https://www.bristell.com/technical-documentation/

ADxC-73-SB-015

Service Bulletin for convenience or option

26.8.2022

Replacement of oil cooler DC-045

All BRM Aero B23 with 912 series engines installed

Increase of cooling capacity of the oil cooler for hot and high operation for ROTAX Engine Type 912 (Series).

Under very hot and high conditions with prolonged engine run on ground, as well as
prolonged climbs at low speeds, the oil cooler with greater surface ensures a more
comfortable margin to the oil temperature limit reducing stress and wear of the engine.

ADxC-73-SB-014

Service Bulletin for convenience or option

21.4.2022

Replacement of fuel filler neck placard

B23 All aircraft

- Addition of fuel grade AVGAS UL91 to the corresponding section in the AFM

- Replacement of fuel filler neck placards according to ADxC-DC-73-046

- Replacement of AFM ADxC-73-001-AFM by latest revision B

ADxC-73-SB-008

Service Bulletin to introduce improvements

13.8.2021

AFM changes

B23
All aircraft

Changes of the AFM:
Increase of demonstrated cross wind performance 9kts →15kts
corrections of typos, correction of current warning trigger values,
minor wording, addition of GDU460 to the MMEL
AFM download: https://www.bristell.com/technical-documentation/

BRISTELL B23 - 915

Bulletin No.
Bulletin číslo

Bulletin Classification
Klasifikace bulletinu

Date of Issue
Datum vydání

Bulletin title
Název bulletinu

Affected aircraft
Týká se letadel

Brief description
Stručný popis

Header

ADxC-73-SB-018

Service bulletin recommended to be accomplished to prevent significant operational disruptions

14.10.2022

Aileron AP system improvement

All BRM Aero B23 models and serial numbers with installed auto pilot system.

Improvement of the bracket connection (also called “sleeve”) connecting the aileron AP push rod with the aileron control system.

ADxC-73-SB-019

Service bulletin to introduce improvements

20.09.2022

Editorial change of the AFM

All serial numbers of Bristell B23 and Bristell B23-915 TCDS EASA.A.642

For model Bristell B23-915: Updated cabin smoke procedure. Minor corrections.

AFM download available at: https://www.bristell.com/technical-documentation/

ADxC-73-SB-013

Service Bulletin for convenience or option

11.04.2022

Replacement of fuel filler neck placard

B23-915 All aircraft

- Addition of fuel grade AVGAS UL91 to the corresponding section in the AFM

- Replacement of fuel filler neck placards according to ADxC-DC-73-042

- Replacement of AFM ADxC-73-003-AFM by latest revision B

BRISTELL Ultralight / Lightsport

Bulletin No.
Bulletin číslo

Bulletin Classification
Klasifikace bulletinu

Date of Issue
Datum vydání

Bulletin title
Název bulletinu

Affected aircraft
Týká se letadel

Brief description
Stručný popis

Header

22112 Rev. A

Mandatory Service Bulletin

28.11.2022

Automatic Trim/GDU™ 4XX Reset

All Bristell experimental, ultralight, and Light-Sport Aircraft fitted G3X, G3X Touch, and G5 systems

In G3X, G3X Touch, and G5 systems with GSA 28 autopilot servos connected to trim actuators, an uncommanded automatic trim runaway may occur when the autopilot is first engaged.

Software update required

ALL-SA-0-0-0-ALL-0002-2021

Safety directive/Safety alert
Závazný bulletin

11.11.2021

Seat attachment
Uchycení sedačky

All UL and LSA models of BRISTELL

Všechny UL a LSA modely bristell

Seat attachment brackets replacement.
Výměna konzol uchycení sedačky.

ALL-SA-3-0-5-0001-2017
ALL-SA-4-0-5-0001-2017
ALL-SA-5-0-5-0001-2017

Safety Alert
Závazný

5.10.2017

ELEVATOR CONTROL STUCK
ZABLOKOVÁNÍ PODÉLNÉHO ŘÍZENÍ

All BRISTELL aircraft fitted with Rotax 912 iS, iS Sport, Rotax 914 engines and an autopilot.
Všechny letouny BRISTELL s motory Rotax 912 iS, iS Sport, Rotax 914 a autopilotem.

Elevator servo rod check
Kontrola táhla serva výškovky

ALL-SA-0-0-0-0005-2020

Safety Alert
Závazný

11.5.2020

KAVLICO PRESSURE SENSORS
SNÍMAČE TLAKU KAVLICO

All BRISTELL aircraft fitted with Kavlico pressure sensors.
Všechny letouny BRISTELL se snímači tlaku Kavlico.

Potential leak of Kavlico pressure sensors
Možný únik snímačů tlaku Kavlico

ALL-SA-0-0-0-0001-2020

Safety Alert Directive

7.8.2020
(4.9.2020 Rev.1)
(7.12.2022 Rev.2)

AOI revision

All BRISTELL BRISTELL aircraft.

Change of crew arm for aeroplane C.G. calculation.

(Rev.1 – Re-classification to Safety Directive on FAA request)
Rev.2: MAC origin distance correction

ALL-SA-0-0-0-0001-2020

Závazný

20.8.2020
Rev.1 nepoužita
(7.12.2022 Rev.2)

Revize LP

Všechny letouny BRISTELL.

Změna ramene posádky pro výpočet polohy těžiště letounu.

Revize 1 nepoužita

Revize 2: Oprava vzdálenosti počátku hloubky střední aerodynamické tětivy

>