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AVIATION / Safety & utilities / REVIEWED 2026-09-11

F03Fire detection & suppression

Detect hazardous heat and provide designated suppression.

Manufacturers & products

Engine, APU, cargo and cabin fire protection use different detectors, agents and installation evidence. Component specifications below are product examples, not operating or maintenance instructions.

Program applicability is stated for each listing. 737NG, 737 MAX, and other aircraft examples are distinct configurations; listed products are not automatically interchangeable or approved for installation.

manufacturer

Parker Meggitt

Engine and APU fire protection

The MAX program sheet lists engine/APU fire bottles, detectors and control units. [2][1]

Program / application

737MAX engine / APU fire protection [2][1]

Manufacturer inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications

Source is an April 2022 program overview; confirm current part-number effectivity.

View product & inquiry route

manufacturer

Collins Aerospace / Kidde

Aircraft fire detection and extinguishing

Offers detectors, suppression hardware and Kidde lavatory waste-bin extinguishers. [3]

Program / application

Boeing / Bombardier family examples; exact 737 effectivity unverified [3]

Manufacturer inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications

Nozzle configuration and approved replacement effectivity are aircraft-specific.

View product & inquiry route

manufacturer

Diehl Aviation

Multisensor fire and smoke detector

Offers a multisensor detector for cargo, lavatory and crew-rest compartments. [4]

Program / application

Other-aircraft detector reference; no 737 installation established [4]

Manufacturer inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications

The 2018 sheet describes compatibility with an A380 lavatory detector, not a 737.

View product & inquiry route

distributor

H3R Aviation

337TS Halotron BrX extinguisher

Offers a portable Halotron BrX clean-agent aviation extinguisher. [5]

Program / application

Portable aviation example; exact 737 approval unverified [5]

Distributor inquiry

Official product sales contact; request aircraft applicability and installation documentation before any procurement decision.

Product scope & qualifications

Manufacturer specifies a minimum enclosed volume of 459 ft³ per extinguisher; installation limits must be evaluated.

View product & inquiry route

What remains unverified

A complete 737NG fire-system bill of materials and detector setpoints were not established.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

Protected zone and hazard
Engine, cargo, lavatory and cabin requirements are not interchangeable.
Detection performance
Compare smoke, heat or flame response at the specified environmental condition.
False alarms and nuisance rejection
Dust, aerosols, water and temperature changes can affect sensor behavior.
Agent and qualified installation
Agent choice, exposure limits and protected volume must match the approved installation.
Agent versus complete-unit mass · kg
Separating extinguishant from gross mass makes packaging comparisons meaningful.
Container and discharge design
Bottles, plumbing and nozzles are a designed system with application-specific evidence.
Electrical interface and monitoring
Match power, buses, discrete outputs and built-in tests.
Program approval and support
Verify effectivity, supplier support and traceable component records.

Selection & integration notes

Meggitt’s MAX document confirms engine/APU fire-protection products; it must not be used as blanket evidence for 737NG.
Detector product standards do not alone approve an aircraft installation.

Supporting references [2]

Published product examples

4 REFERENCES

Specifications belong to the named product and configuration.

737MAX engine / APU fire-protection referenceParker Meggitt

Program association is documented; bottle capacity and detector thresholds are not published in that sheet.

Example sources [2]

Kidde G800100 / G825100 lavatory extinguishersCollins Aerospace / Kidde

Activation temperature: 170°F (77°C)[3]Published series value.
Discharge duration: 3–5 seconds[3]Series description; aircraft-specific nozzle configuration.

Family product example; not an exact 737 installation claim.

Example sources [3]

Diehl false-alarm-safe fire / smoke detectorDiehl Aviation

Mass: 170 g[4]2018 manufacturer datasheet.
Power: 1 W + 1 W heater on demand[4]Heater load is additional when active.
Normal operating temperature: −40 to +70°C[4]Published operating range.

Cargo/cabin product example from a dated sheet; confirm current revision.

Example sources [4]

337TS portable extinguisherH3R Aviation

Agent mass: 0.871 kg (1.92 lb)[5]Extinguishant only.
Gross mass: 1.442 kg (3.18 lb)[5]Complete published product mass.

Portable cabin equipment, distinct from installed engine or APU bottles.

Example sources [5]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

Parker Meggitt Parker Aerospace · Publication date not stated
Meggitt is part of Parker; aircraft braking and fire-protection businesses.
Accessed 2026-09-10
Meggitt on the Boeing 737 MAX Meggitt · Published 2022-04
MAX engine/APU fire detection and extinguishing components.
Accessed 2026-09-10
Fire protection systems Collins Aerospace · Publication date not stated
Fire detection/suppression capability and Kidde lavatory extinguisher data.
Accessed 2026-09-10
False-alarm-safe fire and smoke detector datasheet Diehl Aviation · Published 2018
Detector mass, power, temperature and dimensions.
Accessed 2026-09-10
337TS Halotron BrX extinguisher H3R Aviation · Publication date not stated
Portable aviation fire extinguisher product; installation applicability unverified.
Accessed 2026-09-10