ASB No. EC155-04A013 

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 Civil version(s): B, B1 

 

ALERT SERVICE BULLETIN 

SUBJECT: LIMITATIONS - Energy-absorbing seats 

Label "Do not stow anything under the seat" 

 ATA: 25 

Revision No. Date of issue 

Revision 0 2014-08-26 

Summary: 

Compliance with this ALERT SERVICE BULLETIN consists in affixing a label which indicates that nothing must be 

stowed under the energy-absorbing seats. 

Compliance: 

Airbus Helicopters renders compliance with this ALERT SERVICE BULLETIN mandatory. 

For the attention of 
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1. PLANNING INFORMATION 

1.A. EFFECTIVITY 

1.A.1. Helicopters/installed equipment 

Helicopters equipped with at least one of the seats listed in paragraph 1.A.2. 

1.A.2. Non-installed equipment 

Pilot, copilot and/or passenger seats listed in the table below and not equipped with the label given in the 

Appendix. 

1.B. ASSOCIATED REQUIREMENTS 

Not applicable. 

1.C. REASON 

During certification of an energy-absorbing seat with a new Part Number, it was observed that the label 

which indicates that the space under the seats must remain free was not systematically installed. 

Objects stowed under this type of seat may reduce the efficiency of its energy-absorbing function and thus 

jeopardize the occupant's survival in the event of a crash. 

Consequently, and pending a definitive solution, Airbus Helicopters makes it mandatory to affix a label which 

indicates that nothing must be stowed under the energy-absorbing seats. 

Equipment manufacturer Seat type Generic Part Number 

(MP/N)

Sicma Aero Seat 

Zodiac Seats France Sicma 159 1591718-xx 159110

Socea 

Sogerma ST102 2510102-xx-xx

F+E 

(Fischer + Entwicklungen) 185-410 9507-()-()-() 

F+E 

(Fischer + Entwicklungen) 236/406 9608-()-()-()

F+E 

(Fischer + Entwicklungen) H110 9606-()-()-()

F+E 

(Fischer + Entwicklungen) H140 0520-()-()-()
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1.D. DESCRIPTION 

Compliance with this ALERT SERVICE BULLETIN consists in: 

- preparing one or several (locally made) label(s) which indicate(s) that nothing must be stowed under the 

energy-absorbing seats, 

- affixing this (these) label(s) so that it is (they are) visible to the occupants of these seats. 

1.E. COMPLIANCE 

1.E.1. Compliance at the works 

Not applicable. 

1.E.2. Compliance in service 

Helicopters/installed equipment: 

Comply with paragraph 3. within 110 flying hours, without exceeding 1 month following receipt of Revision 0 

of this ALERT SERVICE BULLETIN issued on the date indicated at the bottom of the page. 

Non-installed equipment: 

When installing a seat, comply with paragraph 3. 

1.F. APPROVAL 

Approval of modifications: 

Not applicable. 

Approval of this document: 

The technical information contained in this ALERT SERVICE BULLETIN Revision 0 was approved 

on August 26, 2014 under the authority of EASA Design Organization Approval No. 21J.056 for helicopters 

of civil versions subject to an Airworthiness Certificate. 

1.G. MANPOWER 

For compliance with this ALERT SERVICE BULLETIN, Airbus Helicopters recommends the following 

personnel qualifications: 

Qualification: 1 Technician. 

The time for the operations is given for information purposes, for a standard configuration. 

Time for the operations: approximately 15 minutes. 
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1.H. WEIGHT AND BALANCE 

Not applicable. 

1.I. EFFECT ON ELECTRICAL LOADS 

Not applicable. 

1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD 

Not applicable. 

1.K. REFERENCES 

Not applicable. 

1.L. DOCUMENTS AFFECTED 

Not applicable. 

1.M. INTERCHANGEABILITY OR MIXABILITY OF PARTS 

Not applicable. 
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2. MATERIAL INFORMATION 

2.A. MATERIAL: PRICE - AVAILABILITY - PROCUREMENT 

Not applicable. 

2.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT 

Not applicable. 

2.C. MATERIAL REQUIRED FOR EACH HELICOPTER/COMPONENT 

Not applicable. 

2.D. MATERIAL TO BE RETURNED 

Not applicable. 
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3. ACCOMPLISHMENT INSTRUCTIONS 

3.A. GENERAL 

Not applicable. 

3.B. OPERATIONAL PROCEDURE 

For each seat listed in paragraph 1.A.: 

- Prepare a label in accordance with the Appendix. 

- Affix the label to one of the seat legs so that it is visible and legible. 

3.C. IDENTIFICATION 

 Identification of this document: 

Record compliance with this document, with the revision number, in the helicopter documents. 

3.D. OPERATING AND MAINTENANCE INSTRUCTIONS 

Not applicable. 
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DO NOT STOW ANYTHING 

UNDER THE SEAT

DO NOT STOW ANYTHING 

UNDER THE SEAT

4. APPENDIX 

- Label marking characteristics: 

. text to be marked: "DO NOT STOW ANYTHING UNDER THE SEAT", 

. black text on white background or white text on black background, 

. font size: between 6mm and 10mm, 

. the marking must not be easily erasable, 

. the text is given in English but can be translated into another language, according to the local 

regulations in force. 

- The label must not be easily damaged. 

- Examples of labels: